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參數資料
| 型號： | M74HCT648B1R |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 總線收發器 |
| 英文描述： | HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 410K |
| 代理商： | M74HCT648B1R |
1/15
April 2003
s
HIGH SPEED:
fMAX = 60 MHz (TYP.) at VCC = 4.5V
s
LOW POWER DISSIPATION:
ICC = 4A(MAX.) at TA=25°C
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 648
DESCRIPTION
The 74HCT648 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
with 3 state, D-type flip-flops, and control circuitry
arranged for multiplexed transmission of data
directly from the input bus or from the internal
registers. Data on the A or B bus will be clocked
into register on the low to high transition of the
appropriate clock pin (Clock AB or Clock BA).
Enable (G) and direction (DIR) pins are provided
to control
the
transceiver
functions. In the
transceiver
mode,
data
present
at
the
high-impedance port may be stored in either
register or in both. The select controls (Select AB,
Select 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 the isolation mode
(enable G high), "A" data may be stored in one
register and/or "B" data may be stored in the other
register. When an output 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
voltage.
M74HCT648
OCTAL BUS TRANSCEIVER/REGISTER
WITH 3 STATE OUTPUTS (INVERTING)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HCT648B1R
SOP
M74HCT648M1R
M74HCT648RM13TR
TSSOP
M74HCT648TTR
TSSOP
DIP
SOP
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M74HCT652B1R | 功能描述:總線收發器 Octal Bus Trans/Reg RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| M74HCT652RM13TR | 功能描述:總線收發器 Octal Bus Trans/Reg RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| M74HCT688B1R | 功能描述:校驗器 IC 8-Bit Equality Comp RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| M74HCT688RM13TR | 功能描述:校驗器 IC 8-Bit Equality Comp RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| M74HCT7007B1R | 功能描述:緩沖器和線路驅動器 DISC BY STM 9/01 HEX BUFFER RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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