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參數(shù)資料
| 型號： | 87C754 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 80C51 8-bit microcontroller family 4K/256 OTP/ROM, DAC, comparator, UART, reference |
| 中文描述： | 80C51的8位單片機(jī)系列4K/256檢察官辦公室/光盤，援，比較，異步，參考 |
| 文件頁數(shù)： | 19/26頁 |
| 文件大小： | 217K |
| 代理商： | 87C754 |
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Philips Semiconductors
Preliminary specification
83C754/87C754
80C51 8-bit microcontroller family
4K/256 OTP/ROM, DAC, comparator, UART, reference
1998 Apr 23
19
4MHz
8MHz
12MHz
16MHz
FREQ
MAX ACTIVE I
CC6
TYP ACTIVE I
CC6
MAX IDLE I
CC7
TYP IDLE I
CC7
I
CC
mA
2
4
6
8
10
12
14
16
18
20
22
SU00308
Figure 19. I
CC
vs. FREQ
Maximum I
CC
values taken at V
CC
= 5.5V and worst case temperature.
Typical I
CC
values taken at V
CC
= 5.0V and 25
°
C.
Notes 6 and 7 refer to AC Electrical Characteristics.
ROM CODE SUBMISSION
When submitting ROM code for the 83C754, the following must be specified:
1. 4k byte user ROM data
2. 64 byte ROM encryption key
3. ROM security bits.
ADDRESS
0000H to 0FFFH
CONTENT
DATA
BIT(S)
7:0
COMMENT
User ROM Data
1000H to 101FH
KEY
7:0
ROM Encryption Key
FFH = no encryption
ROM Security Bit 1
0 = enable security
1 = disable security
1020H
SEC
0
1020H
SEC
1
ROM Security Bit 2
0 = enable security
1 = disable security
Security Bit 1:
When programmed, this bit has two effects on masked ROM parts:
1. External MOVC is disabled, and
2. EA# is latched on Reset.
Security Bit 2:
When programmed, this bit inhibits Verify User ROM.
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.
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