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參數(shù)資料
| 型號： | P89C51RD2BP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| 中文描述： | 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | 0.600 INCH, PLASTIC, SOT-129-1, DIP-40 |
| 文件頁數(shù)： | 33/52頁 |
| 文件大?。?/td> | 289K |
| 代理商： | P89C51RD2BP |
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Philips Semiconductors
Preliminary specification
89C51RB2/89C51RC2/
89C51RD2
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1999 Sep 23
33
AC ELECTRICAL CHARACTERISTICS (6 CLOCK MODE)
T
amb
= 0
°
C to +70
°
C or –40
°
C to +85
°
C, V
CC
= 5 V
±
10%, V
SS
= 0V
1, 2, 3
VARIABLE CLOCK
4
MIN
0
t
CLCL
–40
0.5t
CLCL
–20
0.5t
CLCL
–20
20 MHz CLOCK
4
MIN
0
10
5
5
SYMBOL
1/t
CLCL
t
LHLL
t
AVLL
t
LLAX
t
LLIV
t
LLPL
t
PLPH
t
PLIV
t
PXIX
t
PXIZ
t
AVIV
t
PLAZ
Data Memory
t
RLRH
t
WLWH
t
RLDV
t
RHDX
t
RHDZ
t
LLDV
t
AVDV
t
LLWL
t
AVWL
t
QVWX
t
WHQX
t
QVWH
t
RLAZ
t
WHLH
External Clock
t
CHCX
t
CLCX
t
CLCH
t
CHCL
Shift Register
t
XLXL
t
QVXH
t
XHQX
t
XHDX
t
XHDV
NOTES:
1. Parameters are valid over operating temperature range unless otherwise specified.
2. Load capacitance for port 0, ALE, and PSEN = 100 pF, load capacitance for all other outputs = 80 pF.
3. Interfacing the microcontroller to devices with float times up to 45 ns is permitted. This limited bus contention will not cause damage to
Port 0 drivers.
4. Parts are tested to 2 MHz, but are guaranteed to operate down to 0 Hz.
FIGURE
29
29
29
29
29
29
29
29
29
29
29
29
PARAMETER
MAX
20
MAX
20
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Oscillator frequency
ALE pulse width
Address valid to ALE low
Address hold after ALE low
ALE low to valid instruction in
ALE low to PSEN low
PSEN pulse width
PSEN low to valid instruction in
Input instruction hold after PSEN
Input instruction float after PSEN
Address to valid instruction in
PSEN low to address float
2t
CLCL
–65
35
0.5t
CLCL
–20
1.5t
CLCL
–45
5
30
1.5t
CLCL
–60
15
0
0
0.5t
CLCL
–20
2.5t
CLCL
–80
10
5
45
10
30, 31
30, 31
30, 31
30, 31
30, 31
30, 31
30, 31
30, 31
30, 31
30, 31
30, 31
31
30, 31
30, 31
RD pulse width
WR pulse width
RD low to valid data in
Data hold after RD
Data float after RD
ALE low to valid data in
Address to valid data in
ALE low to RD or WR low
Address valid to WR low or RD low
Data valid to WR transition
Data hold after WR
Data valid to WR high
RD low to address float
RD or WR high to ALE high
3t
CLCL
–100
3t
CLCL
–100
50
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2.5t
CLCL
–90
35
0
0
t
CLCL
–20
4t
CLCL
–150
4.5t
CLCL
–165
1.5t
CLCL
+50
5
50
60
125
1.5t
CLCL
–50
2t
CLCL
–75
0.5t
CLCL
–25
0.5t
CLCL
–20
3.5t
CLCL
–130
25
25
0
5
45
0
0
45
0.5t
CLCL
–20
0.5t
CLCL
+20
5
33
33
33
33
High time
Low time
Rise time
Fall time
20
20
t
CLCL
–t
CLCX
t
CLCL
–t
CHCX
5
5
ns
ns
ns
ns
32
32
32
32
32
Serial port clock cycle time
Output data setup to clock rising edge
Output data hold after clock rising edge
Input data hold after clock rising edge
Clock rising edge to input data valid
6t
CLCL
5t
CLCL
–133
t
CLCL
–30
0
300
117
20
0
ns
ns
ns
ns
ns
5t
CLCL
–133
117
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