PI74FCT161TS Ver la hoja de datos (PDF) - Pericom Semiconductor
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PI74FCT161TS Datasheet PDF : 6 Pages
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PI74FCT161T/163T
(25Ω Series) PI74FCT2161T/2163T
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High Speed CMOS Synchronous
4-Bit Binary Counters
Product Features
• PI74FCT161/163/2161/2163T are pin-compatible with
bipolar FASTTM Series at a higher speed and lower power
consumption
• 25Ω series resistor on all outputs (FCT2XXX only)
• TTL input and output levels
• Low ground bounce outputs (25Ω series only)
• Extremely low static power
• Hysteresis on all inputs
• Industrial operating temperature range: -40°C to + 85°C
• Packages available:
- 16-pin 150 mil wide plastic QSOP (Q)
- 16-pin 150 mil wide plastic SOIC (W)
- 16-pin 300 mil wide plastic SOIC (S)
Product Description
Pericom Semiconductor’s PI74FCT series of logic circuits are
produced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades. All PI74FCT2XXX devices
have a built-in 25Ω series resistor on all outputs to reduce noise
owing to reflections, thus eliminating an external terminating
resistor.
The PI74FCT161T and PI74FCT163 are high speed CMOS
synchronous presettable 4-bit binary counters. The 161 has an
asynchronous clear, the 163 has a clocked synchronous clear. Data
is preloaded or the counters count on the rising edge of the clock.
Count enable inputs and terminal count outputs allow these counters
to be cascaded without loss of speed. Preset inputs override count
inputs, and clear inputs override both preset and count inputs. All
inputs have clamp diodes for undershoot noise suppression. All
outputs have ground bounce suppression.
Functional Block Diagram
CET
= FF
CEP
D3-C0
PE
MR
CP
Cin Q+Cin
163 Only
TC
25 Ohm
(FCT2XXX Only)
Q3-Q0
25 Ohm
(FCT2XXX Only)
161 Only
Pin Configurations
MR 1
CP 2
D0 3
D1 4
D2 5
D3 6
CEP 7
GND 8
16 VCC
15 TC
14 Q0
13 Q1
12 Q2
11 Q3
10 CET
9 PE
1
PS2083B 10/08/01
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