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參數(shù)資料
| 型號(hào)： | M74HC191B1R |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 10-Bit, 3 us Quad DAC, Serial Input, Simultaneous Update, Programmable Settling Time, PowerDown 16-SOIC -40 to 85 |
| 中文描述： | 4上/下計(jì)數(shù)器位同步 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 299K |
| 代理商： | M74HC191B1R |
M54/M74HC190
M54/M74HC191
October 1992
4 BIT SYNCHRONOUS UP/DOWN COUNTERS
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) AT T
A
= 25
°
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 4 mA(MIN.)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS190/191
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXB1R
M74HCXXXM1R
M74HCXXXC1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
DESCRIPTION
.
HIGH SPEED
f
MAX
= 48 MHz (TYP.) AT V
CC
= 5 V
The M54/74HC190/191 are high speedCMOS4-BIT
SYNCHRONOUS UP/DOWN COUNTERS fabri-
catedinsilicon gate C
2
MOS technology.
They have the same high speed performance of
LSTTL combined with true CMOS low power con-
sumption.
State changes of the counter are synchronous with
theLOW-to-HIGH transition of the Clock Pulse input.
Anasynchronous parallel load input overrides count-
ingandloadsthedatapresentontheDATAinputsinto
the flip-flops, which makes it possible to use the cir-
cuitsasprogrammable counters.Acountenable input
serves as the carry/borrow input in multi-stage
counters.
Control
input,
whether a circuitcounts up or down. AMAX/MINout-
putandaRippleClockoutputprovide overflow/under-
flow indication and make possible a variety of
methodsfor generating carry/borrow signals inmulti-
stagecounter applications.
Allinputs are equipped withprotection circuitsagainst
staticdischarge and transient excess voltage.
Down/Up, determines
1/14
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M74HC191M1R | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M74HC191F1R | CA-BAYONET |
| M74HC193 | SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER |
| M74HC193B1R | SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER |
| M74HC193C1R | IGBT Module; Transistor Polarity:N Channel; Collector Emitter Voltage, Vceo:1.2kV; Collector Emitter Saturation Voltage, Vce(sat):3V; Power Dissipation, Pd:2318W; Package/Case:Module; Collector Current:400A |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M74HC191C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M74HC191F1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M74HC191M1R | 功能描述:計(jì)數(shù)器 IC DISC BY STM 4/01 4-BIT SYNC BIN UP/DN RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)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 |
| M74HC191RM13TR | 功能描述:計(jì)數(shù)器移位寄存器 Sync Up/Dn Counter RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| M74HC191TTR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
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