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DM74ALS240AWM Datasheet

  • DM74ALS240AWM

  • Octal 3-STATE Bus Driver

  • 7頁

  • FAIRCHILD

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DM74ALS240A 鈥?DM74ALS241A Octal 3-STATE Bus Driver
September 1986
Revised February 2000
DM74ALS240A 鈥?DM74ALS241A
Octal 3-STATE Bus Driver
General Description
These octal 3-STATE bus drivers are designed to provide
the designer with flexibility in implementing a bus interface
with memory, microprocessor, or communication systems.
The output 3-STATE gating control is organized into two
separate groups of four buffers. The DM74ALS240A con-
trol inputs symmetrically enable the respective outputs
when set logic LOW, while the DM74ALS241A has comple-
mentary enable gating. The 3-STATE circuitry contains a
feature that maintains the buffer outputs in 3-STATE (high
impedance state) during power supply ramp-up or ramp-
down. This eliminates bus glitching problems that arise
during power-up and power-down.
Features
s
Advanced low power
Schottky TTL process
oxide-isolated
ion-implanted
s
Functional and pin compatible with the DM74LS coun-
terpart
s
Improved switching performance with less power dissi-
pation compared with the DM74LS counterpart
s
Switching response specified into 500鈩?and 50 pF load
s
Switching response specifications guaranteed over full
temperature and V
CC
supply range
s
PNP input design reduces input loading
s
Low level drive current: 74ALS
=
24 mA
Ordering Code:
Order Number
DM74ALS240AWM
DM74ALS240ASJ
DM74ALS240AN
DM74ALS241AWM
DM74ALS241AN
Package Number
M20B
M20D
N20A
M20B
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagrams
DM74ALS240A
DM74ALS241A
漏 2000 Fairchild Semiconductor Corporation
DS006210
www.fairchildsemi.com

DM74ALS240AWM 產(chǎn)品屬性

  • 1,080

  • 集成電路 (IC)

  • 邏輯 - 柵極和逆變器

  • 74ALS

  • 逆變器，緩沖器

  • 2

  • 4

  • 三態(tài)

  • 4.5 V ~ 5.5 V

  • -

  • 15mA，24mA

  • 0.8V

  • 2V

  • 9ns @ 4.5V ~ 5.5V，50pF

  • 0°C ~ 70°C

  • 表面貼裝

  • 20-SOIC

  • 20-SOIC（0.295"，7.50mm 寬）

  • 管件

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