参数资料
型号: SN74AHCT245PWRG4
厂商: Texas Instruments
文件页数: 1/27页
文件大小: 0K
描述: IC BUS TRANSCEIVER 8BIT 20TSSOP
标准包装: 2,000
系列: 74AHCT
逻辑类型: 收发器,非反相
元件数: 1
每个元件的位元数: 8
输出电流高,低: 8mA,8mA
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
SN74AHCT245 . . . DB, DGV, DW, N, NS,
OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
A2
A1
DIR
B7
B6
OE
A8
GND
B8
V
CC
SN54AHCT245 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN74AHCT245 . . . RGY PACKAGE
(TOP VIEW)
1
20
10
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
OE
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
A8
DIR
B8
V
GND
CC
SN54AHCT245 . . . J OR W PACKAGE
SCLS233O – OCTOBER 1995 – REVISED AUGUST 2013
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Check for Samples: SN74AHCT245, SN54AHCT245
1
FEATURES
DESCRIPTION
These octal bus transceivers are designed for
Inputs Are TTL-Voltage Compatible
asynchronous two-way communication between data
Latch-Up Performance Exceeds 250 mA Per
buses. The control-function implementation minimizes
JESD 17
external timing requirements.
ESD Protection Exceeds JESD 22
The ’AHCT245 devices allow data transmission from
2000-V Human-Body Model (A114-A)
the A bus to the B bus or from the B bus to the A
bus, depending on the logic level at the direction-
200-V Machine Model (A115-A)
control (DIR) input. The output-enable (OE) input can
1000-V Charged-Device Model (C101)
be used to disable the device so that the buses
effectively are isolated.
To ensure the high-impedance state during power up
or power down, OE should be tied to VCC through a
pullup resistor; the minimum value of the resistor is
determined by the current-sinking capability of the
driver.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 1995–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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SN74AHCT245RGYRG4 功能描述:总线收发器 Octal Bus Trnscvrs With 3-State Outputs 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
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