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參數(shù)資料
| 型號： | P80C51HFT |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RY Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 09V; Output Voltage (Vdc): 15V; Power: 1W; On/Off Pin; 1kVDC Isolation; UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Internal linear regulator; Efficiency to 70% |
| 中文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDSO40 |
| 封裝： | PLASTIC, SOT-158-1, VSO-40 |
| 文件頁數(shù)： | 33/38頁 |
| 文件大?。?/td> | 350K |
| 代理商： | P80C51HFT |
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Philips Semiconductors
Product specification
80C51/87C51/80C31
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
2000 Jan 20
33
MASK ROM DEVICES
Security Bits
With none of the security bits programmed the code in the program
memory can be verified. If the encryption table is programmed, the
code will be encrypted when verified. When only security bit 1 (see
Table 10) is programmed, MOVC instructions executed from
external program memory are disabled from fetching code bytes
from the internal memory, EA is latched on Reset and all further
programming of the EPROM is disabled. When security bits 1 and 2
are programmed, in addition to the above, verify mode is disabled.
Encryption Array
64 bytes of encryption array are initially unprogrammed (all 1s).
Table 10. Program Security Bits
PROGRAM LOCK BITS
1, 2
SB1
SB2
PROTECTION DESCRIPTION
1
U
U
No Program Security features enabled.
(Code verify will still be encrypted by the Encryption Array if programmed.)
2
P
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.
NOTES:
1. P – programmed. U – unprogrammed.
2. Any other combination of the security bits is not defined.
ROM CODE SUBMISSION
When submitting ROM code for the 80C51, the following must be specified:
1. 4k byte user ROM data
2. 64 byte ROM encryption key
3. ROM security bits.
ADDRESS
CONTENT
BIT(S)
COMMENT
0000H to 0FFFH
DATA
7:0
User ROM Data
1000H to 103FH
KEY
7:0
ROM Encryption Key
1040H
SEC
0
ROM Security Bit 1
1040H
SEC
1
ROM Security Bit 2
Security Bit 1:
1. External MOVC is disabled, and
2. EA is latched on Reset.
When programmed, this bit has two effects on masked ROM parts:
Security Bit 2:
When programmed, this bit inhibits Verify User ROM.
NOTE:
Security Bit 2 cannot be enabled unless Security Bit 1 is enabled.
If the ROM Code file does not include the options, the following information must be included with the ROM code.
For each of the following, check the appropriate box, and send to Philips along with the code:
Security Bit #1:
Enabled
Disabled
Security Bit #2:
Enabled
Disabled
Encryption:
No
Yes
If Yes, must send key file.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| P80C51X2BN | 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 |
| P80C51X2FA | RY Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 15V; Output Voltage (Vdc): 09V; Power: 1W; On/Off Pin; 1kVDC Isolation; UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Internal linear regulator; Efficiency to 70% |
| P80C51X2FBD | 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 |
| P80C31X2BN | 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 |
| P80C51 | 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P80C51HFTD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage single-chip 8-bit microcontrollers |
| P80C51-L16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P80C51P16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P80C51P32 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P80C51P4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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