74HC93DB,118 查看數據表（PDF） - NXP Semiconductors.
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74HC93DB,118 Datasheet PDF : 7 Pages
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Philips Semiconductors
4-bit binary ripple counter
Product specification
74HC/HCT93
PIN DESCRIPTION
PIN NO.
1
2, 3
4, 6, 7, 13
5
10
12, 9, 8, 11
14
SYMBOL
CP1
MR1, MR2
n.c.
VCC
GND
Q0 to Q3
CP0
NAME AND FUNCTION
clock input 2nd, 3rd and 4th section (HIGH-to-LOW, edge-triggered)
asynchronous master reset (active HIGH)
not connected
positive supply voltage
ground (0 V)
flip-flop outputs
clock input 1st section (HIGH-to-LOW, edge-triggered)
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
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