P87C554SBAA,512 NXP Semiconductors, P87C554SBAA,512 Datasheet - Page 38

• Manufacturer Part Number: P87C554SBAA,512
• Description: IC 80C51 MCU 16K OTP 64-PLCC
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C554SBAA,512

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 40
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 68-PLCC
• Cpu Family: 87C
• Device Core: 80C51
• Device Core Size: 8b
• Frequency (max): 16MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 512Byte
• # 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: 7-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 68
• Package Type: PLCC
• Processor Series: P87C5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 40
• Number Of Timers: 3
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 568-1254-5; 935263385512; P87C554SBAA

Philips Semiconductors
In the following text, it is assumed that ENS1 = “1”.
STA
STA = “1”: When the STA bit is set to enter a master mode, the SIO1
hardware checks the status of the I2C bus and generates a START
condition if the bus is free. If the bus is not free, then SIO1 waits for
a STOP condition (which will free the bus) and generates a START
condition after a delay of a half clock period of the internal serial
clock generator.
If STA is set while SIO1 is already in a master mode and one or
more bytes are transmitted or received, SIO1 transmits a repeated
START condition. STA may be set at any time. STA may also be set
when SIO1 is an addressed slave.
2002 Mar 25
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
capture/compare, high I/O
, THE
SHIFT ACK & S1DAT
(1) Valid data in S1DAT
(2) Shifting data in S1DAT and ACK
(3) High level on SDA
START F
SHIFT BSD7
S1DAT
BSD7
LAG
SDA
SCL
SDA
ACK
SCL
LOADED BY THE CPU
(1)
D7
D7
(2)
(2)
D6
D6
SHIFT PULSES
(2)
(2)
Figure 38. Serial Input/Output Configuration
Figure 39. Shift-in and Shift-out Timing
D5
D5
BSD7
(2)
(2)
2
D4
D4
C, PWM,
(2)
(2)
INTERNAL BUS
36
D3
D3
STA = “0”: When the STA bit is reset, no START condition or
repeated START condition will be generated.
STO
STO = “1”: When the STO bit is set while SIO1 is in a master mode,
a STOP condition is transmitted to the I
condition is detected on the bus, the SIO1 hardware clears the STO
flag. In a slave mode, the STO flag may be set to recover from an
error condition. In this case, no STOP condition is transmitted to the
I
condition has been received and switches to the defined “not
addressed” slave receiver mode. The STO flag is automatically
cleared by hardware.
2
S1DAT
(2)
(2)
C bus. However, the SIO1 hardware behaves as if a STOP
, THE
8
D2
D2
STOP F
(2)
(2)
D1
D1
LAG
(2)
(2)
ACK
D0
D0
(2)
(2)
(3)
A
SU00969
(1)
2
A
C bus. When the STOP
SHIFT IN
SU00970
SHIFT OUT
P87C554
Product data