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PI74FCT2193AS Datasheet

  • PI74FCT2193AS

  • Synchronous Up/Down Counter

  • 6頁

  • ETC

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Logic Block Diagram
CPU
Cup
up
dn
CPD
D0-D3
PL
MR
Q
Cdn
+C
-C
Register
4-Bit
1098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
1098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
1098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT193T
鈩?/div>
(25鈩?Series) PI74FCT2193T
High-Speed CMOS Presettable
Synchronous 4-Bit Binary Counters
Product Features
鈥?/div>
PI74FCT193/2193T is pin compatible with bipolar FAST聶
Series at a higher speed and lower power consumption
鈥?/div>
25鈩?series resistor on all outputs (FCT2XXX only)
鈥?/div>
TTL input and output levels
鈥?/div>
Low ground bounce outputs (25鈩?series only)
鈥?/div>
Extremely low static power
鈥?/div>
Hysteresis on all inputs
鈥?/div>
Industrial operating temperature range: 聳40擄C to +85擄C
鈥?/div>
Packages available:
聳 16-pin 150 mil wide plastic QSOP (Q)
聳 16-pin 300 mil wide plastic SOIC (S)
Product Description
Pericom Semiconductor聮s PI74FCT series of logic circuits are
produced using the Company聮s advanced 0.6 micron CMOS
technology, achieving industry leading speed grades. All
PI74FCT2XXX devices have a built-in 25 ohm series resistor on
all outputs to reduce noise due to reflections, thus eliminating the
need for an external terminating resistor.
The PI74FCT193 is a high-speed CMOS 4-bit binary up/down
counter. It has a single clock with clock enable and up/down
control inputs and ripple carry output. The 193 has asynchronous
preload inputs which override the count inputs. All inputs have
clamp diodes for undershoot noise suppression. All outputs have
ground bounce suppression.
25
9
(FCT2xxx ONLY)
9
(FCT2xxx ONLY)
TCU
Q0 - Q 3
=F
25
=0
TCD
25
9
(FCT2xxx ONLY)
1
PS2085E
09/14/99

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