參數(shù)資料
型號(hào): 935225400512
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 34/67頁(yè)
文件大?。?/td> 400K
代理商: 935225400512
1998
Apr
07
4
Philips
Semiconductors
Product
specication
8-bit
Flash
microcontrollers
P89C738;
P89C739
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4
BLOCK
DIAGRAM
d
book,
full
pagewidth
MGK189
XTAL2
XTAL1
P3
P2
P1
P0
PARALLEL I/O PORTS
AND
EXTERNAL BUS
WATCHDOG
TIMER
(T3)
TWO 16-BIT
TIMERS/
EVENT
COUNTERS
(T0, T1)
80C51 core
excluding
ROM/RAM
CPU
PROGRAM
MEMORY
64-kbyte
MTP-ROM
16-BIT
TIMER/
EVENT
COUNTER
(T2)
16 kbytes BUS
EXPANSION CONTROL
DATA
MEMORY
256-byte
RAM
DATA
MEMORY
256-byte
AUX-RAM
PROGRAMMABLE
SERIAL PORT
FULL DUPLEX
UART
SYNCHRONOUS
SHIFT
8-bit
internal bus
internal
reset
P89C738
P89C739
8
P5(3)
P4(3)
RST
VDD
VSS
RXD (2) TXD (2)
INT1 (2)
internal
interrupts
INT0 (2)
T1 (2)
T0 (2)
PSEN
EA
ALE/WE
WR (2)
T2EX (1)
T2 (1)
RD (2)
Fig.1 Block diagram.
(1) Alternative function for Port 1.
(2) Alternative function for Port 3.
(3) P4 and P5 are only available on the P89C738ABA and P89C739ABB (PLCC68 and QFP64).
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