参数资料
型号: MC74LCX2952SD
厂商: ON SEMICONDUCTOR
元件分类: 总线收发器
英文描述: LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封装: PLASTIC, SSOP-24
文件页数: 16/43页
文件大小: 383K
代理商: MC74LCX2952SD
LCX Applications Information
MOTOROLA
LCX DATA
BR1339 — REV 3
18
Figure 12. LCX System Block Diagram
5V DRAM
LCX244
5V Cache
SRAM
LCX373
3V CPU
Core
Logic
LCX Gates
LCX
245
LCX373
3.3V Host Bus
ROM
BIOS
Super
I/O
EIA
232
Keyboard
C
RTC
LCD/Video
LCX244
Video
DRAM
IDE
Drive
LCX245
5V I/O Bus
L
C
X
Module
Docking Station
PCMCIA
Ethernet
Fax/Modem
Token Ring
Wireless Comm/LAN
3V
Output
Bulk–Biased
5V–Tolerant
Circuitry
3–State
Control
OE
5V–Tolerant
Input
3V
Figure 13. LCX Provides Power Management
Powered
Down
Devices
L
C
X
IOFF < 10A
LCX Signal Pins –
High Impedance
Power Down
VCC = 0V
Pull OE to VCC
(Optional)
LCX will isolate active and
powered down subsystems. . .
POWERED DOWN SUBSYSTEM
5V or 3V
Active
Devices
Active
Devices
Active
Devices
ACTIVE
BUS
VCC = 5V or 3V
ACTIVE SUBSYSTEM
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