P89V51RD2 Philips Semiconductors, P89V51RD2 Datasheet - Page 67

• Manufacturer Part Number: P89V51RD2
• Description: 8-bit 80C51 5 V low power 64 kB Flash microcontroller with 1 kB RAM
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 69:
Table 70:
9397 750 12964
Product data
Symbol
t
t
t
Symbol
t
t
t
t
t
CLCX
CLCH
CHCL
XLXL
QVXH
XHQX
XHDX
XHDV
Fig 33. External clock drive waveform.
Fig 34. Shift register mode timing waveforms.
External clock drive
Serial port timing
WRITE TO SBUF
INSTRUCTION
OUTPUT DATA
INPUT DATA
CLEAR RI
Parameter
low time
rise time
fall time
Parameter
serial port clock cycle time
output data set-up 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
CLOCK
ALE
V DD - 0.5
0.45 V
0
…continued
t QVXH
1
0
t XLXL
VALID
0.2 V DD - 0.1
t XHDV
0.7V DD
t XHQX
t CHCL
2
1
Rev. 01 — 01 March 2004
VALID
Oscillator
40 MHz
Min
8.75
-
-
Oscillator
40 MHz
Min
0.3
117
0
0
-
t XHDX
3
2
VALID
t CLCX
Max
-
10
10
Max
-
-
-
-
117
4
3
VALID
t CLCL
5
4
t CLCH
VALID
t CHCX
8-bit microcontrollers with 80C51 core
Variable
Min
0.35T
-
-
Variable
Min
12t
10t
2t
0
-
6
CLCL
5
CLCL
CLCL
VALID
002aaa551
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
CLCL
50
133 -
7
6
P89V51RD2
VALID
002aaa552
Max
0.65T
-
-
Max
-
-
-
10t
CLCL
8
7
SET R I
SET TI
VALID
CLCL
133 ns
Unit
ns
ns
ns
Unit
ns
ns
ns
67 of 75
s