參數資料
| 型號： | 74VHC161N |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 1/11頁 |
| 文件大小： | 0K |
| 描述： | IC COUNTER BINARY 4BIT 16DIP |
| 標準包裝： | 25 |
| 系列： | 74VHC |
| 邏輯類型： | 二進制計數器 |
| 方向： | 上 |
| 元件數： | 1 |
| 每個元件的位元數： | 4 |
| 復位： | 異步 |
| 計時： | 同步 |
| 計數速率： | 125MHz |
| 觸發器類型： | 正邊沿 |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 16-DIP |
| 包裝： | 管件 |
tm
74VHC161
4-Bit
Binar
y
Counter
with
Async
hr
onous
Clear
May 2007
1993 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHC161 Rev. 1.4
74VHC161
4-Bit Binary Counter with Asynchronous Clear
Features
■ High Speed: fMAX = 185MHz (Typ.) at TA = 25°C
■ Synchronous counting and loading
■ High-speed synchronous expansion
■ Low power dissipation: ICC = 4A (Max.) at TA = 25°C
■ High noise immunity: VNIH = VNIL = 28% VCC (Min.)
■ Power down protection provided on all inputs
■ Low noise: VOLP = 0.8V (Max.)
■ Pin and function compatible with 74HC161
General Description
The VHC161 is an advanced high-speed CMOS device
fabricated with silicon gate CMOS technology. It
achieves the high-speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation. The VHC161 is a high-speed
synchronous modulo-16 binary counter. This device is
synchronously presettable for application in program-
mable dividers and have two types of Count Enable
inputs plus a Terminal Count output for versatility in
forming synchronous multistage counters. The VHC161
has an asynchronous Master Reset input that overrides
all other inputs and forces the outputs LOW. An input
protection circuit insures that 0V to 7V can be applied to
the input pins without regard to the supply voltage. This
device can be used to interface 5V to 3V systems and
two supply systems such as battery backup. This circuit
prevents device destruction due to mismatched supply
and input voltages.
Ordering Information
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering number.
Connection Diagram
Pin Description
Order Number
Package
Number
Package Description
74VHC161M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VHC161SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC161MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
Pin Names
Description
CEP
Count Enable Parallel Input
CET
Count Enable Trickle Input
CP
Clock Pulse Input
MR
Asynchronous Master Reset Input
P0–P3
Parallel Data Inputs
PE
Parallel Enable Inputs
Q0–Q3
Flip-Flop Outputs
TC
Terminal Count Output
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHC161N_Q | 功能描述:計數器 IC 4-Bit Binary Counter RoHS:否 制造商:NXP Semiconductors 計數器類型:Binary Counters 邏輯系列:74LV 位數:10 計數法: 計數順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74VHC161SJ | 功能描述:計數器移位寄存器 4-Bit Binary Counter RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| 74VHC161SJX | 功能描述:計數器移位寄存器 4-Bit Binary Counter RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| 74VHC16240 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (INVERTED) |
| 74VHC16240TTR | 功能描述:緩沖器和線路驅動器 16-Bit Bus Buffer RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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