P80C552EFA NXP Semiconductors, P80C552EFA Datasheet - Page 17

• Manufacturer Part Number: P80C552EFA
• Description: MCU 8-Bit 80C 80C51 CISC ROMLess 5V 68-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P80C552EFA

• Package: 68PLCC
• Device Core: 80C51
• Family Name: 80C
• Maximum Speed: 16 MHz
• Ram Size: 256 Byte
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: ROMLess
• Number Of Programmable I/os: 40
• Interface Type: I2C/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

Philips Semiconductors
2002 Sep 03
WRITE TO SBUF
INSTRUCTION
PORT 0
PORT 2
INPUT DATA
OUTPUT DATA
Single-chip 8-bit microcontroller with 10-bit A/D,
capture/compare timer, high-speed outputs, PWM
CLEAR RI
PSEN
ALE
WR
CLOCK
ALE
t
AVLL
0
t
QVXH
FROM RI OR DPL
0.8 V
A0–A7
V
t
IH1
1
LLAX
t
AVWL
0
VALID
t
t
XLXL
t
LLWL
HIGH
t
XHDV
P2.0–P2.7 OR A8–A15 FROM DPH
V
t
XHQX
IH1
Figure 4. External Data Memory Write Cycle
0.8 V
2
1
Figure 5. External Clock Drive XTAL1
Figure 6. Shift Register Mode Timing
VALID
t
QVWX
t
LOW
t
XHDX
DATA OUT
t
3
DW
t
WLWH
2
VALID
t
17
CLCL
t
0.8 V
r
V
IH1
4
3
VALID
V
t
WHLH
IH1
0.8 V
t
5
WHQX
4
t
f
VALID
A0–A7 FROM PCL
A8–A15 FROM PCH
6
5
VALID
80C552/83C552
7
6
VALID
SU01696
SU01697
SU01678
INSTR IN
Product data
8
7
SET TI
SET RI
VALID