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參數(shù)資料
| 型號： | 87C54X2 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz |
| 中文描述： | 80C51的8位單片機系列4K/8K/16K/32K的ROM / RAM的檢察官辦公室128B/256B低電壓2.7至5.5 V，低功耗，高速33分之30兆赫 |
| 文件頁數(shù)： | 45/56頁 |
| 文件大?。?/td> | 337K |
| 代理商： | 87C54X2 |
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Philips Semiconductors
Product specification
8XC52/54/58/80C32
8XC51FA/FB/FC/80C51FA
8XC51RA+/RB+/RC+/RD+/80C51RA+
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
1999 Apr 01
45
Table 9. EPROM Programming Modes
MODE
RST
PSEN
ALE/PROG
EA/V
PP
P2.7
P2.6
P3.7
P3.6
Read signature
1
0
1
1
0
0
0
0
Program code data
1
0
0*
V
PP
1
0
1
1
Verify code data
1
0
1
1
0
0
1
1
Pgm encryption table
1
0
0*
V
PP
1
0
1
0
Pgm security bit 1
1
0
0*
V
PP
1
1
1
1
Pgm security bit 2
1
0
0*
V
PP
1
1
0
0
Pgm security bit 3
NOTES:
1. ‘0’ = Valid low for that pin, ‘1’ = valid high for that pin.
2. V
PP
= 12.75V
±
0.25V.
3. V
CC
= 5V
±
10% during programming and verification.
*
ALE/PROG receives 5 programming pulses for code data (also for user array; 5 pulses for encryption or security bits) while V
PP
is held at
12.75V. Each programming pulse is low for 100
μ
s (
±
10
μ
s) and high for a minimum of 10
μ
s.
1
0
0*
V
PP
0
1
0
1
Table 10. Program Security Bits for EPROM Devices
PROGRAM LOCK BITS
1, 2
SB1
SB2
SB3
PROTECTION DESCRIPTION
1
U
U
U
No Program Security features enabled. (Code verify will still be encrypted by the Encryption Array if
programmed.)
2
P
U
U
MOVC instructions executed from external program memory are disabled from fetching code bytes
from internal memory, EA is sampled and latched on Reset, and further programming of the EPROM
is disabled.
3
P
P
U
Same as 2, also verify is disabled.
4
P
P
P
Same as 3, external execution is disabled.
NOTES:
1. P – programmed. U – unprogrammed.
2. Any other combination of the security bits is not defined.
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| 87C54 | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER WITH 16 KBYTES USER PROGRAMMABLE EPROM |
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| 87C550 | 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 87C550 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer |
| 87C550EBPN | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 87C552 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller 8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O |
| 87C552/BMA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| 87C554 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP |
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