參數(shù)資料
型號(hào)： UPD7554ACSA
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 17/64頁(yè)
文件大?。?/td> 991K
代理商： UPD7554ACSA
17
μ
PD7554A, 7554A(A)
2.3
PROGRAM MEMORY (ROM): 1024 WORDS
×
8BITS
The program memory is a mask programmable ROM of 1024 word
×
8 bits configuration. It is addressed by the
program counter.
The program memory stores programs.
Address 000H is the reset start address.
Fig. 2-4 Program Memory Map
(0) 000H
(1023) 3FFH
Reset Start
2.4
GENERAL REGISTER
General registers H (with two bits) and L (with four bits) operate individually. They also form a pair register HL
(H: high order and L: low order) to serve as a data pointer for addressing the data memory.
Fig. 2-5 General Register Configuration
1
0
H
L
3
0
The L register is also used to specify I/O ports and the mode register when an input/output instruction (IPL or
OPL) is executed. It also used to specify the bits of a port when the SPBL or RPBL instruction is executed.
相關(guān)PDF資料
PDF描述
UPD7554AGA 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554A 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554AA 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554ACS 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554AG 4-BIT SINGLE-CHIP MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD7554AG-597-E2 制造商:Renesas Electronics Corporation 功能描述:
UPD7554AG-597-E2-A 制造商:Renesas Electronics Corporation 功能描述:
UPD7554AG-603-E2 制造商:Renesas Electronics Corporation 功能描述:
UPD7554AG-603-E2-A 制造商:Renesas Electronics Corporation 功能描述:
UPD7554AG-611-E2 制造商:Renesas Electronics Corporation 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*