P87C554SBAA NXP Semiconductors, P87C554SBAA Datasheet - Page 51

• Manufacturer Part Number: P87C554SBAA
• Description: MCU 8-Bit 87C 80C51 CISC 16KB EPROM 5V 68-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P87C554SBAA

• Package: 68PLCC
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 16 MHz
• Ram Size: 512 Byte
• Program Memory Size: 16 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 40
• Interface Type: I2C/UART
• On-chip Adc: 7-chx10-bit
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 3

Philips Semiconductors
2003 Jan 28
80C51 8-bit microcontroller – 6-clock operation
16K/512 OTP/ROMless, 7 channel 10 bit A/D, I
high I/O, 64L LQFP
NUMBYTMST
BACKUP
S1CON
S1ADR
S1DAT
S1STA
HADD
PSW
MRD
IEN0
SRD
MTD
STD
SLA
IPO
P1
CR2
P1.7
EA
ORIGINAL VALUE OF NUMBYTMST
NUMBER OF BYTES AS MASTER
SLA+R/W TO BE TRANSMITTED TO SLA
HIGHER ADDRESS BYTE INTERRUPT ROUTINE
SLAVE TRANSMITTER DATA RAM
SLAVE RECEIVER DATA RAM
MASTER RECEIVER DATA RAM
MASTER TRANSMITTER DATA RAM
SPECIAL FUNCTION REGISTERS
INTERNAL DATA RAM
ENS1
Figure 47. SIO1 Data Memory Map
P1.6
STA
PS1
ES1
ST0
2
C, PWM, capture/compare,
R1
R0
51
SI
AA
0
CR!
0
CR0
SU00978
GC
0
DB
DA
D9
D8
D0
B8
AB
90
80
7F
53
52
51
50
4F
48
40
38
30
19
18
00
80C554/87C554
Product data