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參數資料
| 型號： | M74HC691M1R |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 計數器 |
| 英文描述： | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO20 |
| 封裝： | SO-20 |
| 文件頁數： | 1/17頁 |
| 文件大?。?/td> | 823K |
| 代理商： | M74HC691M1R |
1/17
August 2001
s
HIGH SPEED:
fMAX = 53 MHz (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
ICC = 4A(MAX.) at TA=25°C
s
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN) for QA to QD OUTPUT
|IOH| = IOL = 4mA (MIN) for RCO OUTPUT
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 691
DESCRIPTION
The
M74HC691
is
an
high
speed
CMOS
DECADE/COUNTER
REGISTER
(3
STATE)
fabricated with silicon gate C2MOS technology.
The internal circuit is composed of 3 stages
including buffer output, which offers high noise
immunity
and
stable
output.
This
device
incorporates a synchronous counter, four bit
D-type register, and quadruple two-line to one-line
multiplexers with three-state outputs in a single 20
pin package. The counter can be programmed
from the data inputs and have enable P and
enable T inputs and a ripple carry output for easy
expansion. The register/counter select input, R/C,
selects the counter when low or the register when
high for the three state-outputs, QA, QB, QC, and
QD. If the LOAD input (LOAD) is held "L" DATA
input (A - D) are loaded into the internal counter at
positive edge of counter clock input (CCK). In the
counter mode, internal counter counts up at the
positive of the counter clock. If the counter clear
inputs (CCLR) is held "L", the internal counter is
cleared asynchronously to the counter clock. The
internal counter’s outputs are stored in the output
register at the positive edge of the register clock
(RCK). If the register clear input (RCLR) is held "L"
the register is cleared asynchronously to register
clock.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC691
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC691B1R
SOP
M74HC691M1R
M74HC691RM13TR
TSSOP
M74HC691TTR
TSSOP
DIP
SOP
4 BIT BINARY COUNTER/REGISTER (3-STATE)
相關PDF資料 |
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| M74HC692C1 | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PQCC20 |
| M74HC693C1 | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PQCC20 |
| M54HC692F1 | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CDIP20 |
| M74HC697C1 | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PQCC20 |
| M74HC696C1 | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PQCC20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| M74HC7266B1R | 功能描述:邏輯門 Quad Exclusive NOR RoHS:否 制造商:Texas Instruments 產品:OR 邏輯系列:LVC 柵極數量:2 線路數量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| M74HC7266M1R | 功能描述:邏輯門 Quad Exclusive NOR RoHS:否 制造商:Texas Instruments 產品:OR 邏輯系列:LVC 柵極數量:2 線路數量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| M74HC7266RM13TR | 功能描述:邏輯門 QUAD EXCLUSIVE NOR GATE RoHS:否 制造商:Texas Instruments 產品:OR 邏輯系列:LVC 柵極數量:2 線路數量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| M74HC73B1 | 制造商:STMicroelectronics 功能描述: |
| M74HC73B1R | 功能描述:觸發器 Dual J-K F/F w/Clear RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
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