74ACT299M(1999) 查看數據表（PDF） - STMicroelectronics

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74ACT299M
(Rev.:1999)

8 BIT PIPO SHIFT REGISTER WITH ASYNCHRONOUS CLEAR

STMicroelectronics 

74ACT299

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL = 50 pF or equivalent (includes jigand probe capacitance)

RL = R1 = 500Ω orequivalent

RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)

SW IT CH

Open

2VCC

Open

8/13

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