參數(shù)資料
型號: 74LS168
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
中文描述: BCD碼十年/模16二進(jìn)制同步的雙向計(jì)數(shù)器
文件頁數(shù): 6/6頁
文件大小: 117K
代理商: 74LS168
5-6
FAST AND LS TTL DATA
SN54/74LS168
SN54/74LS169
AC WAVEFORMS
Figure 1. Clock to Output Delays,
Count Frequency, and Clock Pulse Width
Figure 2. Count Enable Trickle Input
To Terminal Count Output Delays
Figure 3. Clock to Terminal Delays
Figure 4. Setup Time (ts) and Hold (th)
for Parallel Data Inputs
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
CP
Q OR TC
tPHL
tPLH
tPLH
tPHL
CET
TC
1/fmax
tW
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
ts(H)
ts(L)
th(L) = 0
th(H) = 0
Q0
Q1
Q2
Q3
CP
TC
tPLH
tPHL
1.3 V
1.3 V
1.3 V
1.3 V
P0
P1
P2
P3
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
SR OR PE
CP
U/D
TC
ts(L)
ts(H)
th(L) = 0
th(H) = 0
ts(H)
th(H) = 0
th(L) = 0
ts(H)
ts(L)
tPLH
tPHL
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
ts(L)
th(L) = 0
th(H) = 0
Figure 5. Setup Time and Hold Time for
Count Enable and Parallel Enable Inputs,
and Up-Down Control Inputs
Figure 6. Up-Down Input to
Terminal Count Output Delays
The shaded areas indicate when the
input is permitted to change for
predictable output performance.
CP
CEP
CET
CP
相關(guān)PDF資料
PDF描述
74LS168 54LS168 Synchronous Bi-Directional BCD Decade Counter
74LS168 BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
74LS194 LOW POWER SCHOTTKY
74LS194 4-Bit Bidirectional Universal Shift Register
74LS197 4-STAGE PRESETTABLE RIPPLE COUNTERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74LS168AN 制造商:North American Philips Discrete Products Div 功能描述:Counter, Up/Down, Decade, 16 Pin, Plastic, DIP
74LS169 WAF 制造商:Texas Instruments 功能描述:
74LS169A DIE 制造商:Advanced Micro Devices 功能描述:
74LS169AN 制造商:SIG 功能描述:74LS169 N6E2B 制造商:NXP Semiconductors 功能描述: 制造商:. 功能描述:Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP 制造商:North American Philips Discrete Products Div 功能描述:Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP 制造商:NXP Semiconductors 功能描述:Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP
74LS169DC 制造商:Freescale Semiconductor 功能描述:Counter, Up/Down, 4 Bit Binary, 16 Pin, Ceramic, DIP