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参数资料
| 型号： | M74HC651M1R |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 总线收发器 |
| 英文描述： | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24 |
| 封装： | SOP-24 |
| 文件页数： | 1/16页 |
| 文件大小： | 551K |
| 代理商： | M74HC651M1R |
1/16
April 2003
s
HIGH SPEED:
fMAX = 79 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)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 651
DESCRIPTION
The 74HC651 is an advanced high-speed CMOS
OCTAL BUS TRANSCEIVER AND REGISTER
(3-STATE) fabricated with silicon gate C2MOS
technology.
This device consists of bus transceiver circuits,
D-type flip-flops, and control circuitry arranged for
multiplexed transmission of data directly from the
input bus or from the internal storage registers.
Enable GAB and GBA are provided to control the
transceiver functions. Select AB and select BA
control pins are provided to select whether
real-time or stored data is transferred. A low input
level selects real-time data, and a high selects
stored data.
Data on the A or B bus, or both, can be stored in
the internal D flip-flops by low-to-high transition at
the appropriate clock pins (CLOCK AB or CLOCK
BA) regardless of the select or enable control pins.
When select AB and select BA are in the real time
transfer mode, it is also possible to store data
without using the internal D type flip-flops by
simultaneously enabling GAB and GBA. In this
configuration each output reinforces its input.
Thus, when all other data sources to the two sets
of bus lines are at high impedance, each set of
bus lines will remain at its last state.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC651
OCTAL BUS TRANSCEIVER/REGISTER
WITH 3 STATE OUTPUTS (INVERTING)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC651B1R
SOP
M74HC651M1R
M74HC651RM13TR
TSSOP
M74HC651TTR
TSSOP
DIP
SOP
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PDF描述 |
|---|---|
| M74HC651TTR | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24 |
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| M74HC693B1R | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP20 |
| M74HC698C1R | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PQCC20 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M74HC652M1R | 制造商:STMicroelectronics 功能描述:Bus XCVR Single 8-CH 3-ST 24-Pin SOP Tube |
| M74HC670B1R | 功能描述:寄存器 4WordX4Bit Reg File RoHS:否 制造商:NXP Semiconductors 逻辑类型:CMOS 逻辑系列:HC 电路数量:1 最大时钟频率:36 MHz 传播延迟时间: 高电平输出电流:- 7.8 mA 低电平输出电流:7.8 mA 电源电压-最大:6 V 最大工作温度:+ 125 C 封装 / 箱体:SOT-38 封装:Tube |
| M74HC670M1R | 功能描述:寄存器 4WordX4Bit Reg File RoHS:否 制造商:NXP Semiconductors 逻辑类型:CMOS 逻辑系列:HC 电路数量:1 最大时钟频率:36 MHz 传播延迟时间: 高电平输出电流:- 7.8 mA 低电平输出电流:7.8 mA 电源电压-最大:6 V 最大工作温度:+ 125 C 封装 / 箱体:SOT-38 封装:Tube |
| M74HC670RM13TR | 制造商:STMicroelectronics 功能描述: |
| M74HC688B1N | 制造商:STMicroelectronics 功能描述:HC/UH SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, 20 Pin Plastic DIP |
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