- 您现在的位置：买卖IC网 > PDF目录359104 > M74HCT648B1R (意法半导体) HCT646 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE HCT648 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE, INV. PDF资料下载
参数资料
| 型号： | M74HCT648B1R |
| 厂商： | 意法半导体 |
| 元件分类： | 通用总线功能 |
| 英文描述： | HCT646 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE HCT648 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE, INV. |
| 中文描述： | HCT646八路总线收发器/注册3态HCT648八路总线收发器/注册三态，刑事调查。 |
| 文件页数： | 1/12页 |
| 文件大小： | 201K |
| 代理商： | M74HCT648B1R |
M74HCT646
M74HCT648
October 1993
HCT648 OCTAL BUS TRANSCEIVER/REGISTER (3-STATE,INV.)
.
HIGH SPEED
f
MAX
= 60 MHz (TYP.) AT V
CC
= 5 V
.
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) AT T
A
= 25
°
C
.
COMPATIBLE WITHTTL OUTPUTS
V
IH
= 2V (MIN.) V
IL
= 0.8V (MAX)
.
OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 6 mA (MIN.)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS646/648
HCT646 OCTAL BUS TRANSCEIVER/REGISTER (3-STATE)
B1R
(Plastic Package)
ORDER CODES :
M74HCTXXXM1R
M74HCTXXXB1R
M1R
(Micro Package)
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN CONNECTIONS
(top view)
GAB, GAB, CAB,
SAB,SBA, CBA
A, B
DESCRIPTION
The M74HCT646/648 are high speed CMOS
OCTALBUS TRANSCEIVERS AND REGISTERS,
(3-STATE) fabricated in silicon gate C
2
MOS tech-
nology.
They
have
the
performance of LSTTL combined with true CMOS
low power consumption. These devices consist of
bus transceiver circuits with 3-state output, D-type
flip-flops, and control circuitry arranged for multi-
plexed transmission of data directly from the input
bus or from the internal registers. Data on the A or
B bus will be clocked into the registers on the low-
to-high transition of theappropriate clock pin (Clock
AB - or Clock BA). Enable (G) and direction (DIR)
pinsare provided tocontrol thetransceiverfunction-
s. In the transceiver mode, data present at the
high-impedance port maybestoredineitherregister
or in both. The selectcontrols (Select ABselect BA)
can multiplex stored and real-time (transparent
mode)data. The direction control determines which
bus will receive data when enable G is active (low).
In theisolation mode (enable G high), ”A” data may
be stored in one register and/or ”B” data may be
storedinthe other register. When anoutput function
is disabled, the input function is still enabled and
may be used to store and transmit data. Only one
of the two buses, A or B, may be driven at a time.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.This integrated circuit has input and output
characteristics that are fully compatible with 54/74
LSTTL logic families. M74HCT devices are de-
signedto directly interface HSC
2
MOS systems with
TTL and NMOScomponents. They are also plug in
replacements for LSTTL devices giving a reduction
of power consumption.
same
high
speed
1/12
相关PDF资料 |
PDF描述 |
|---|---|
| M74HCT7259B1R | 8BIT ADDRESSABLE LATCH/DECODER/RELAIS DRIVER OPEN DRAIN,INVERTING OUTPUT |
| M74HCT7259M1R | 8BIT ADDRESSABLE LATCH/DECODER/RELAIS DRIVER OPEN DRAIN,INVERTING OUTPUT |
| M74HCT7259M1RTR | 8BIT ADDRESSABLE LATCH/DECODER/RELAIS DRIVER OPEN DRAIN,INVERTING OUTPUT |
| M74HCT74RM13TR | DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR |
| M74HCT74-1 | DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M74HCT652B1R | 功能描述:总线收发器 Octal Bus Trans/Reg RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| M74HCT652RM13TR | 功能描述:总线收发器 Octal Bus Trans/Reg RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| M74HCT688B1R | 功能描述:校验器 IC 8-Bit Equality Comp RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| M74HCT688RM13TR | 功能描述:校验器 IC 8-Bit Equality Comp RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| M74HCT7007B1R | 功能描述:缓冲器和线路驱动器 DISC BY STM 9/01 HEX BUFFER RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。