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參數(shù)資料
| 型號： | P89C535NBAA |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS single-chip 8-bit microcontrollers with FLASH program memory |
| 中文描述： | 8-BIT, FLASH, MICROCONTROLLER, PQCC44 |
| 文件頁數(shù)： | 24/35頁 |
| 文件大小： | 221K |
| 代理商： | P89C535NBAA |
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Philips Semiconductors
Preliminary specification
89C535/89C536/89C538
CMOS single-chip 8-bit microcontrollers
with FLASH program memory
1997 Jun 05
24
su00876
P1
RST
P3.3
XTAL2
XTAL1
VSS
VDD
P0
EA
ALE/WE
PSEN
P2.7
P3.5
P2.0–P2.5
P3.4
P2.6, P3.7, P3.1, P3.0
89C535/536/538
A0–A7
1
CE
4–6 MHz
PGM COMMAND/DATA
V
PP
LOW PULSE
0
OE
A15
A8–A13
A14
0000b
+5V
Figure 21.
Erase/Programming/Verification
Table 8. Pin Description
PIN NAME
SYMBOL
FUNCTION
P1.0–P1.7
P2.0–P2.5, P3.4, P3.5
A0–A7
A8–A13, A14–A15
Input Low Order Address Bits
Input High Order Address Bits
P0.0–P0.7
Q0–Q7
Data Input/Output
P3.3
CE
Chip Enable Input
P2.7
OE
Output Enable Input
ALE/WE
WE
Write Enable Pin
EA
V
PP
FTEST3–FTEST0
Program Supply Voltage
P2.6, P3.7, P3.1, P3.0
Flash Test Mode Selection
V
CC
GND
V
CC
GND
Power Supply Voltage (+5V)
Ground Pin
Table 9. Command Definitions
FIRST BUS CYCLE
SECOND BUS CYCLE
COMMAND
BUS CYCLES
OPERATION ADDRESS DATA
OPERATION ADDRESS DATA
Setup auto erase/auto erase (chip)
2
Write
X
30H
Write
X
30H
Setup auto program/program
2
Write
X
40H
Write
PA
PD
Reset
2
Write
X
FFH
Write
X
FFH
Note:
PA = Address of memory location to be programmed
PD = Data to be programmed at location
Command Definitions
When low voltage is applied to the V
PP
pin, the contents of the
command register default to 00H. Placing high voltage on the V
PP
pin enables read/write operations. Device operations are selected
by writing specific data patterns into the command register. Table 2
defines these 89C535/536/538 register commands. Table 3 defines
the bus operations of 89C535/536/538.
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| P89C536 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 16K/64K/512 FLASH |
| P89C536NBAA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 16K/64K/512 FLASH |
| P89C536NBBB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 16K/64K/512 FLASH |
| P89C538NBAA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 16K/64K/512 FLASH |
| P89C538NBBB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 16K/64K/512 FLASH |
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