參數(shù)資料
型號: SN74AHCT161
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: 4-Bit Synchronous Binary Counters(4位二進制同步計數(shù)器)
中文描述: 4位同步二進制計數(shù)器(4位二進制同步計數(shù)器)
文件頁數(shù): 9/10頁
文件大?。?/td> 224K
代理商: SN74AHCT161
SN54AHCT161, SN74AHCT161
4-BIT SYNCHRONOUS BINARY COUNTERS
SCLS368A – MAY 1997 – REVISED JUNE 1997
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50% VCC
3 V
3 V
0 V
0 V
th
tsu
Data Input
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
3 V
0 V
50% VCC
Input
(see Note B)
Out-of-Phase
Output
In-Phase
Output
Timing Input
(see Note B)
VOLTAGE WAVEFORMS
DELAY TIMES
3 V
0 V
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Input
50% VCC
50% VCC
1.5 V
1.5 V
1.5 V
1.5 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
LOAD CIRCUIT
Test
Point
CL
(see Note A)
From Output
Under Test
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR
1 MHz, ZO = 50
, tr
C. The outputs are measured one at a time with one input transition per measurement.
3 ns, tf
3 ns.
1.5 V
1.5 V
1.5 V
Figure 1. Load Circuit and Voltage Waveforms
P
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