P80C557E4EFB NXP Semiconductors, P80C557E4EFB Datasheet - Page 68

• Manufacturer Part Number: P80C557E4EFB
• Manufacturer: NXP Semiconductors

Specifications of P80C557E4EFB

• Cpu Family: 80C
• Device Core: 80C51
• Device Core Size: 8b
• Frequency (max): 16MHz
• Interface Type: I2C/UART
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Total Internal Ram Size: 1KB
• # I/os (max): 40
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
1999 Mar 02
PORT 0
PORT 2
PORT 0
PORT 2
Single-chip 8-bit microcontroller
PSEN
PSEN
ALE
ALE
WR
RD
t
t
AVLL
AVLL
FROM RI OR DPL
FROM RI OR DPL
A0–A7
A0–A7
t
t
LLAX
t
LLAX
t
AVWL
AVWL
t
t
LLWL
LLWL
t
P2.0–P2.7 OR A8–A15 FROM DPH
P2.0–P2.7 OR A8–A15 FROM DPH
AVDV
Figure 61. External Data Memory Read Cycle
Figure 62. External Data Memory Write Cycle
t
LLDV
t
QVWX
t
t
RLDV
RLAZ
t
QVWH
DATA OUT
t
WLWH
t
RLRH
68
t
RHDX
DATA IN
P83C557E4/P80C557E4/P89C557E4
t
RHDZ
t
t
WHLH
WHLH
t
WHQX
A0–A7 FROM PCL
A0–A7 FROM PCL
A8–A15 FROM PCH
A8–A15 FROM PCH
Product specification
INSTR IN
INSTR IN