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參數(shù)資料
| 型號(hào)： | 8XC51FA |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit CMOS (low voltage, low power and high speed) microcontroller families |
| 中文描述： | 8位CMOS（低電壓，低功耗和高速）微控制器系列 |
| 文件頁(yè)數(shù)： | 45/55頁(yè) |
| 文件大?。?/td> | 361K |
| 代理商： | 8XC51FA |
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Philips Semiconductors
Preliminary specification
8XC52/54/58/80C32
8XC51FA/FB/FC/80C51FA
8XC51RA+/RB+/RC+/RD+/80C51RA+
8-bit CMOS (low voltage, low power
and high speed) microcontroller families
1997 Dec 01
219
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 8XC51FC | 8-bit CMOS (low voltage, low power and high speed) microcontroller families |
| 8XC51RD | 8-bit CMOS (low voltage, low power and high speed) microcontroller families |
| 8XC80C32 | 8-bit CMOS (low voltage, low power and high speed) microcontroller families |
| 8XC51FB | Low power single card reader |
| 8XC51 | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 8XC51FA/FB/FC/80C51FA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:(360.35 k) |
| 8XC51FB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low power single card reader |
| 8XC51FC | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit CMOS (low voltage, low power and high speed) microcontroller families |
| 8XC51FX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS |
| 8XC51GB | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
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