參數資料
型號: UPD70433R-12
廠商: NEC Corp.
元件分類: 16位微控制器
英文描述: V55PITM 16-BIT MICROPROCESSOR
中文描述: V55PITM 16位微處理器
文件頁數: 11/166頁
文件大?。?/td> 772K
代理商: UPD70433R-12
11
μ
PD70433
Pin Name
Function
AD0 to AD15
A16 to A23
External bus cycle address signal output in external bus
RD
Output
WRL
WRH
–––
1.1.2
Non-Port Pins
(1)
Bus control pins
Input/
Output
Alternate
Function
ASTB
External bus cycle address strobe signal output in external bus
External memory cycle data read strobe signal output in
external bus
External memory cycle lower byte data write strobe signal
output in external bus
External memory cycle upper byte data write strobe signal
output in external bus
READY
Input
External bus cycle ready signal input in external bus
DEX
External bus cycle upper byte data enable signal output
Output
RAS
DRAM low address latch timing signal output
D8/D16
Input
External bus data bus width selection signal input
BUSLOCK
Output
External bus bus lock signal output
POLL
Input of POLL signal (sampled in POLL instruction execution)
Input
HLDRQ
External bus hold request signal input
HLDAK
External bus hold acknowledge signal output
Output
REFRQ
Refresh pulse signal output
3–state
input/output
External bus cycle address/data multiplex signal input/output
in external bus
3–state
output
IORD
External I/O cycle data read strobe signal output
Output
IOWR
External I/O cycle data write strobe signal output
DMARQ0
DMA request signal input (channel 0)
P80
Input
DMARQ1
DMA request signal input (channel 1)
P81
DMAAK0
DMA acknowledge signal output (channel 0)
DMAAK1
DMA acknowledge signal output (channel 1)
Output
–––
TCE0
DMA termination signal output (channel 0)
TCE1
DMA termination signal output (channel 1)
相關PDF資料
PDF描述
UPD70433R-16 V55PITM 16-BIT MICROPROCESSOR
UPD70433GD-12-5BB V55PITM 16-BIT MICROPROCESSOR
UPD70433GD-16-5BB V55PITM 16-BIT MICROPROCESSOR
UPD70433GJ-12-3EB V55PITM 16-BIT MICROPROCESSOR
UPD70433GJ-16-3EB V55PITM 16-BIT MICROPROCESSOR
相關代理商/技術參數
參數描述
UPD70433R-16 制造商:NEC 制造商全稱:NEC 功能描述:V55PITM 16-BIT MICROPROCESSOR
UPD705100 制造商:NEC 制造商全稱:NEC 功能描述:V830TM 32-BIT MICROCONTROLLER
UPD705100GJ-100-8 制造商:NEC 制造商全稱:NEC 功能描述:V830TM 32-BIT MICROCONTROLLER
UPD705100GJ-100-8EU 制造商:NEC 制造商全稱:NEC 功能描述:V830TM 32-BIT MICROCONTROLLER
UPD705101 制造商:NEC 制造商全稱:NEC 功能描述:32-BIT MICROPROCESSOR