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參數(shù)資料
| 型號： | HD74AC |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | HD74AC Series Common Information |
| 中文描述： | HD74AC系列通用信息 |
| 文件頁數(shù)： | 17/52頁 |
| 文件大?。?/td> | 220K |
| 代理商： | HD74AC |
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FACT Descriptions and Family Characteristics
16
2.4 Electrostatic Discharge (ESD) Sensitivity
FACT circuits show excellent resistance to ESD-type damage. These logic devices are classified as
category ‘B’ of MIL-STD-883C, test method 3015, and withstand 4000 V typically. FACT logic is
guaranteed to have 2000 V ESD immunity on all inputs and outputs. FACT parts do not require any
special handling procedures. However, normal handling precautions should be observed as in the case of
any semiconductor device.
Figure 16 shows the ESD test circuit used in the sensitivity analysis for this specification. Figure 17 is the
pulse waveform required to perform the sensitivity test.
The test procedure is as follows: five pulses, each of 2000 V, are applied to every combination of pins with
a five second cool-down period between each pulse. The polarity is then reversed and the same procedure,
pulse and pin combination used for an additional five discharges. Continue until all pins have been tested.
If none of the devices from the sample population fails the DC and AC test characteristics, the device shall
be classified as category B of MIL-STD-883C, TM-3015. For further specifications of TM-3015, refer to
the relevant standard. The voltage is increased and the testing procedure is again performed; this entire
process is repeated until all pins fail. This is done to thoroughly evaluate all pins.
Regulated
High Voltage
Supply
DC
Voltmeter
DUT
Waveform
Terminals
R
1
= 800k
(min)
30
(max)
R
2
= 1500
Charge
Discharge
High Voltage
Relay
R
3
= 1500
Calibrate
Test
C1 = 100pF
Figure 16 ESD Test Circuit
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| HD74AC00 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Quad 2-Input NAND Gate |
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| HD74AC00FPEL | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Quad 2-Input NAND Gate |
| HD74AC00P | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Quad 2-Input NAND Gate |
| HD74AC00RPEL | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Quad 2-Input NAND Gate |
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