P80C31SBBB,557 NXP Semiconductors, P80C31SBBB,557 Datasheet - Page 27

• Manufacturer Part Number: P80C31SBBB,557
• Description: IC 80C51 MCU 128 ROMLESS 44-QFP
• Manufacturer: NXP Semiconductors
• Series: 80Cr

Specifications of P80C31SBBB,557

• Package / Case: 44-QFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: UART/USART
• Peripherals: POR
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: P80C3x
• Core: 80C51
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 16 MHz
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: 0 C
• Package: 44PQFP
• Device Core: 80C51
• Family Name: 80C
• Maximum Speed: 16 MHz
• Number Of Programmable I/os: 32
• Interface Type: UART
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935255610557; P80C31SBBB; P80C31SBBB

Philips Semiconductors
2000 Aug 07
WRITE TO SBUF
INSTRUCTION
PORT 0
PORT 2
INPUT DATA
OUTPUT DATA
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
CLEAR RI
PSEN
ALE
WR
CLOCK
ALE
t
AVLL
0
t
QVXH
FROM RI OR DPL
A0–A7
t
t
1
XHDV
LLAX
t
AVWL
0
t
t
XLXL
VALID
LLWL
V
CC
0.45V
–0.5
P2.0–P2.7 OR A8–A15 FROM DPF
Figure 16. External Data Memory Write Cycle
t
XHQX
2
Figure 17. Shift Register Mode Timing
1
VALID
t
QVWX
Figure 18. External Clock Drive
0.2V
t
CHCL
0.7V
t
CC
t
XHDX
DATA OUT
QVWH
CC
3
t
WLWH
–0.1
2
VALID
27
t
CLCX
4
t
CLCL
VALID
3
t
CHCX
t
CLCH
t
WHLH
t
5
WHQX
80C51/87C51/80C52/87C52
SU00009
VALID
4
A0–A7 FROM PCL
A0–A15 FROM PCH
6
VALID
5
7
VALID
6
Product specification
INSTR IN
8
SU00026
SET TI
VALID
SET RI
SU00027
7