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PI74FCT2161TQ PDF预览

PI74FCT2161TQ

更新时间: 2024-11-04 23:27:43
品牌 Logo 应用领域
其他 - ETC 计数器
页数 文件大小 规格书
6页 48K
描述
Synchronous Up Counter

PI74FCT2161TQ 数据手册

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PI74FCT161T/163T  
(25Series) PI74FCT2161T/2163T  
High Speed CMOS Synchronous  
4-Bit Binary Counters  
Product Features  
Product Description  
PI74FCT161/163/2161/2163T are pin-compatible with  
bipolar FASTTM Series at a higher speed and lower power  
consumption  
25series resistor on all outputs (FCT2XXX only)  
TTL input and output levels  
Low ground bounce outputs (25series only)  
Extremely low static power  
Hysteresis on all inputs  
Pericom Semiconductor’s PI74FCT series of logic circuits are  
producedintheCompany’sadvanced0.6micronCMOStechnology,  
achievingindustryleadingspeedgrades.AllPI74FCT2XXXdevices  
have a built-in 25series 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.  
Countenableinputsandterminalcountoutputsallowthesecounters  
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.  
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)  
Functional Block Diagram  
Pin Configurations  
CET  
TC  
= FF  
25 Ohm  
MR  
CP  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
VCC  
TC  
(FCT2XXX Only)  
163 Only  
D0  
Q0  
Cin Q+Cin  
CEP  
Q3-Q0  
D1  
Q1  
25 Ohm  
(FCT2XXX Only)  
D2  
Q2  
D3-C0  
PE  
D3  
Q3  
V
CEP  
GND  
CET  
PE  
MR  
CP  
161 Only  
PS2083B  
10/08/01  
1

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