參數(shù)資料
型號: M74HCT651RM13TR
廠商: STMICROELECTRONICS
元件分類: 總線收發(fā)器
英文描述: HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24
封裝: SOP-24
文件頁數(shù): 1/15頁
文件大?。?/td> 350K
代理商: M74HCT651RM13TR
1/15
April 2003
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HIGH SPEED:
fMAX = 55 MHz (TYP.) at VCC = 4.5V
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LOW POWER DISSIPATION:
ICC = 4A(MAX.) at TA=25°C
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COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
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SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
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BALANCED PROPAGATION DELAYS:
tPLH tPHL
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PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 651
DESCRIPTION
The 74HCT651 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(SAB) and select
BA(SBA) 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.
M74HCT651
OCTAL BUS TRANSCEIVER/REGISTER
WITH 3 STATE OUTPUTS (INVERTING)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HCT651B1R
SOP
M74HCT651M1R
M74HCT651RM13TR
TSSOP
M74HCT651TTR
TSSOP
DIP
SOP
相關(guān)PDF資料
PDF描述
M74HCT651TTR HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24
M74HCT842-1FP HCT SERIES, 10-BIT DRIVER, INVERTED OUTPUT, PDSO24
M74HCT86RM13TR HCT SERIES, QUAD 2-INPUT XOR GATE, PDSO14
M74HCT86TTR HCT SERIES, QUAD 2-INPUT XOR GATE, PDSO14
M74HCT86B1R HCT SERIES, QUAD 2-INPUT XOR GATE, PDIP14
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