SJ 20237-1993 Verification procedures for GH3123 integrated circuit automatic tester
Some standard content:
Military Standard of the Electronic Industry of the People's Republic of China FL0150
SJ20237—93
GH3123 IC Automatic Tester
Verification Regulation
Verification Regulation of model GH3123IC automatic tester
Published on February 9, 1993
China Electronics Industry Corporation
Implemented on May 1, 1993
Military Standard of the Electronic Industry of the People's Republic of China GH3123 IC Automatic Tester
Verification Regulation
Verification Regulation of
medel GH3123 IC automatic tester1 Scope
1.1 Subject Content
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This verification procedure specifies the verification conditions, verification items, verification methods, verification result processing and verification cycle of the GH3123 integrated circuit automatic tester. 1.2 Scope of Application
This verification procedure applies to the verification of the GH3123 integrated circuit automatic tester. 2 Reference Documents
No provisions in this chapter.
3 Definitions
No provisions in this chapter.
4 General requirements
4.1 Purpose and principle of the inspected measuring instruments
China Electronics Industry Corporation 1993-02-99 Issued 1993-05-01 Implementation 1
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GH3123 integrated circuit automatic tester is controlled by Z80A microprocessor, and uses pressure measurement, current measurement and software design technology to realize the automatic measurement of the true current parameters and logic functions of TTL, HTL, CMOS dual in-line and fan-flat package digital ICs within 24 pins. The measurement results are displayed on CRT or printed out. The tester consists of pin unit, test unit, programmable power supply group, main controller, input and output devices and software system. It is a digital IC tester that can accurately measure micro current, has complete functions and is easy to operate.
4.2 Technical requirements
4.2.1 Voltmeter
The technical indicators of the voltmeter are shown in Table 1.
Voltage range
0-- ± 0. 5
±(0. 5~~1. 5)
Resolution
Note: In the error expression:
V.=±(1%reding+0.9%ps)
Va=±(1%reading+0.3%F+S)
rending—voltmeter reading value.V:
4.2.2 Ammeter
The full scale value of the voltmeter, V,
The technical indicators of the ammeter are shown in Table 2.
Electricity with range
{~±75OnA
±( 0.75 ~ 3.00 μA
+(3159μA
±(15~75μA
±(75~300)μA
+(0.3-1.5)mA
±(1.5~7.5)mA
±(7.5~30)mA
±(30150)mA
Resolution
150μA
Note: In the error expression:
reading
4.2.3 Pressurized source
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=+(4.5%rending+1.3%.s)
An= +(3%teading-0. 5%F · S)=±(2%rending+0.3%F·$)
Ammeter reading value:
Full scale value of ammeter.
Technical indicators of pressure source are shown in Table 3.
Quickening range
Resolution
4Vr=+:(1%Setting+0.2%FS
+o,2mVImA-fa!
Rated current
Note①The pressure source is equipped with two digital-to-analog converters (DAC). When setting the pressure, two different resolutions can be used in combination.
Error table selection formula:
Setting —Pressure setting value.V
F,S—Upper limit of pressure range,V,
I.Pressure source output current.mA.
4.2.4 Current sourcewww.bzxz.net
The technical indicators of current source are shown in Table 4.
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Additional range
±(30150)μA
±t15060)μA
(0.6~3.)mA
±(3~15)mA
±(15~60)mA
Division force
50 yuan A
±(6~150)A0. 5m/
Note: In the error expression:
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/p=±(3%Setting+0.3%F-$+dVa)4fe-±(3%Setting+0.3%F-S+5dVu)AIg=±(2%Setting+0, 3%F ·S-20dV,)A=+(2%Setting+u. 3%F+$+100dV,)fr=±(2%Setting+0. 3%F+ $+5UotV。)AfF—±(2%Setting+0.3%F5+20bdV.)Setting current setting value;
F. S--full scale value of the flow range;
d——voltage term coefficient, 6×1h-mA/V;
V, GH3123 type 1C automatic tester measurement voltage value, 4.2.5IC power supply
1C power supply technical indicators are shown in Table 5.
Pressure range
Resolution
AV=±(1%5etting+h 1%F. S)
Note: In the error expression:
Setting
Voltage setting value V:
FS--voltage range upper limit value.V.
4.2.6Driver
Driver technical indicators are shown in Table 6.
Rated current
(V.≤12V)
Driving low level
Driving high level
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Dividing force
0.02~(3. 02+6.630)
0,250~
(0. 25-1 15.320)
Note: In the error expression:
Setting—level setting value V
FS range upper limit value, V.
4.3 Verification conditions
4.3.1 Environmental conditions
9, ambient temperature: 23=2
b. Relative humidity: 45%~75%:
c. Atmospheric pressure. 86~-106kPa;
Vtr==(1%Serting+0.8%FS)
Viy=±(1%Serting+0.5%F·S)
d. Power supply: 220V±2%, 501Iz±1%; e. There is no sunlight in the surrounding environment, and there is no mechanical vibration and electromagnetic field interference that affects normal operation.
4.3.2 Equipment for determination
4.3.2.1 DC digital voltmeter (DVM) Voltage range, 0~±20V:
Error: ±0.1%;
Input impedance: ≥10M0
Reference model: PZ8.
4.3.2.2 DC ammeter
Current range: 0~150mA;
Error level: 0.5 level;
Reference model: 3020 digital multimeter.
4.3.2.3 Standard voltage source
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Voltage range: 0~±20V:
Error; ±0.1%;
Reference model: HP740B.
4.3.2.4 DC regulated voltage source
Voltage range: 0~30V:
Output current: 1.5A:
Reference model: WY30.
4.3.2.5 Precision resistor box
Resistance value: 100Mm:
Error;±0.1%;
Reference model: ZX58 resistor box.
4.3.2.6 Precision resistor
Resistance value: 10M0.1M0.500k0,100kn,10ka,1kn:200n.1002,500
Error:±0.1%;
Reference model: EE1/410Mn.EE1/81Mn、500ka.100k0.10km1k0、2002、1002、500。
4.3.2.7 Resistors
Resistance value: 8-22, 200, 360, 750.820, 560: error ±5%;
Reference model: RJ—0.25—8.2Q±5%; RX21-10—200±5%: RJ—1—362±5%, RJ--2—750±5%; RJ--2—828±5%; RJ1-5600±5%. 4.3.2.8 Integrated Circuits
Technical Requirements: Qualified Products:
Models: 74LS05, 74LS154, 74LS160.T578, CD4001.H006. 5 Detailed Requirements
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5. 1 Verification Items and Verification Methods
5.1.1 Appearance and Normal Working Condition Inspection
5.1.1.1 GH3123 Integrated Circuit Automatic Tester (hereinafter referred to as the Tested Instrument) shall be accompanied by the product technical manual and complete accessories. If it is not the first verification, the previous verification certificate shall be attached.
5.1.1.2 The Tested Instrument shall be free of mechanical damage and looseness that may affect the normal working and correct reading before, the keyboard shall be flexible to rise and fall, and the text and logo shall be clear. 5.1.1.3 Connect the main unit of the instrument under test to the display, printer, and calibration disk, and set the printer's *working\ switch to "off". Turn on the CRT, printer, and main unit power, and the power indicator lights will light up. The CRT will display the "Series\Menu" of the device under test. Type \9\*9", and the digital tube of the calibration disk will display \P\. Reset and calibration keyboard P\ will go out. 5.1.1.4 Use "Function", "Continuous", "Parameter\Mode Specification" to measure qualified devices 74LS05, 74LS154, 74LS160, T578, CD4001, H006, and the measurement result shows \OK\ (the input current, power supply current and other micro-current parameters of CD4001 are not qualified in the continuous\mode measurement. But the parameter mode measurement is qualified, which is a normal phenomenon). 5.1.1.5 If some TTL circuits (including samples 74LS05, 74LS154, 76LS160, T578) are not qualified in the specification measurement, perform "Custom Measurement" according to the following operations to eliminate the influence of environmental interference and other factors. If the "White Definition Measurement" is qualified, the tester function is still normal,
Reset-+ Input DVT Model LAST-Figure Figure-National Return NI-Figure 2 WEXTNEXT mode key
5.1.1.6 Set the printer\working" switch to\on", press the "print" key, and the measurement results displayed on the CRT should be printed. Set the "working" switch to "off" (the printer does not need to be connected during the technical indicator verification process).
Reset.
5.1.2 Verification of voltmeter accuracy
5.1.2.1 Connect the measuring instrument according to Figure 1.
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Tester
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Pin 1
Issue 12
Voltage source
5.1.2.2 If there are no other provisions, the voltage value of each verification point shall be in accordance with Table A1 in Appendix A (Supplement) Regulations.
5.1.2.3 Adjust the standard voltage source so that it outputs the first calibration point voltage value of 0.010V shown in Table A1
5.1.2.4 Operate the calibration keyboard in the following order: REST-EXT-REG
The CRT will display the voltage measurement value, recorded as VM, and record it in Table A1. 5.1.2.5 Adjust the standard voltage source so that it outputs the other calibration point voltage values in Table A1 in turn, and repeat 5.1.2.4 until the tests of each calibration point are completed. 5.1.2.6 Reset the instrument under test.
5.1.2.7 Calculate the absolute error AVM according to formula (1). AVm-VmVmo .*
Wherein Vho is the output voltage of the standard voltage source. 5.1.3 Verification of the accuracy of the ammeter
5.1.3.1 Positive current verification
a. Connect the measuring instrument according to Figure 2:
Tester
1st foot
12th foot 1
Drum pressure meter
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b. The current value of each verification point is determined by formula (2). Vro
IMOERL
Wherein; Vro—||t t||The voltage output of the pressure source (indicated by the DVM reading); RL—standard resistance.
c. Disconnect the A end of RL in Figure 2 from the first pin of the socket of the device under test. Operate the calibration keyboard:
回回·图·回--回图-国国
PURT-回-MO图@-PORT-@国-MUN
图-图-POR-图-×
d. Enter the hexadecimal number XX of each calibration point in turn according to Table A2, and connect the corresponding standard resistance Rl between the first pin and the 12th pin of the socket of the device under test. Record the corresponding DVM reading as Veu· and record it in Table A2.
e. Reset the instrument under test.
f. Disconnect the positive pole of the DVM from the first pin of the socket of the device under test, and connect the A end of RL to the first pin. The RL value should correspond to the XX value of each calibration point in Table A2. When RL≥1MA, R, its connection and the socket of the tested device should be strictly electromagnetically shielded, otherwise a large measurement error will be introduced due to interference. g. Operate the calibration keyboard:
REST·NEXT回-回国◆可-RG
Record the current measurement value (when Im is -3mA~3μA, the difference between the second current and the first current displayed by the CRT is the current measurement value; when Im is 3uA~±150mA, the second current value displayed by the CRT is the measurement value) in the IM column in Table A2.
h. Change the RL value and XX value and repeat the following operations until all the calibration points in Table A2 are measured.
国-区-区--REG
i. Reset the tested instrument.
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5. 1. 3. 2 Negative current calibration
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a. Connect the measuring instrument according to Figure 3,
12. GND:
h. Calculate the current value Imo of each calibration point according to formula (3). Vs
China Power China
Where: Vs--the output voltage of the DC voltage regulator indicated by DVM; R--standard resistance.
Stabilized voltage source
c. Adjust the DC stabilized voltage source so that its output (i.e., DVM indication value) is equal to the voltage value of the first calibration point in Table A3, 10.560V. Connect the resistor R of the corresponding resistance value according to Figure 3.
d. Operate the calibration keyboard:
REST-NEXTREC
Calculate the current measurement value according to the provisions of 5.1.3.1g, and record it in the column m in Table A3.
e. Change the RL and Vs values in turn according to the requirements of the remaining calibration points in Table A3 [except the last calibration point (Vs=6.996V, R:=500) · Repeat the above steps c and d, and then press E until the test of these calibration points is completed. f. Reset the instrument under test.
g. For the calibration point of Vs=6.996V and R=500, the meter 10 should be connected according to Figure 4, and the DVM should be set to "ungrounded".
1st pin
|Test calibration
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Digital voltmeter
2nd pin (GND)
Operation test key:
Voltage source
R/R/O/P
PORT/MON-R/MON
-R/R/P
Then adjust the output of the DC voltage regulator so that the DVM indicates 6.996V and reset it. Measure the current according to 5.1.3.2d. 5.1.3.3 Calculate the absolute error 4Ig of the ammeter according to formula (4). AM-IMImo.*..(4)
Where: 1m - measured current value (indication) of the meter under test Imo - actual value of the current under test Calculated by (3). 5.1.4 Verification of voltage source accuracy
5.1.4.1 Connect the measuring instrument according to Figure 5.
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