P87C52X2BBD,157 NXP Semiconductors, P87C52X2BBD,157 Datasheet - Page 20

• Manufacturer Part Number: P87C52X2BBD,157
• Description: IC 80C51 MCU 256 RAM 44LQFP
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C52X2BBD,157

• Program Memory Type: OTP
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 44-LQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR
• Number Of I /o: 32
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: P87C5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• 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
• Package: 44LQFP
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 33 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935271386157; P87C52X2BBD; P87C52X2BBD

Philips Semiconductors
2003 Jan 24
*n = 6 in 6-clock mode; n = 12 in 12-clock mode.
*n = 6 in 6-clock mode; n = 12 in 12-clock mode.
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
T2EX PIN
OSC
OSC
T2 Pin
T2 Pin
TRANSITION
DETECTOR
n*
n*
C/T2 = 0
C/T2 = 1
C/T2 = 0
C/T2 = 1
EXEN2
Figure 9. Timer 2 in Auto-Reload Mode (DCEN = 0)
Figure 10. Timer 2 Auto Reload Mode (DCEN = 1)
CONTROL
TR2
TR2
CONTROL
CONTROL
(DOWN COUNTING RELOAD VALUE)
RELOAD
(UP COUNTING RELOAD VALUE)
RCAP2L
FFH
TL2
20
(8-BITS)
RCAP2L
TL2
RCAP2H
FFH
TH2
(8-BITS)
RCAP2H
TH2
OVERFLOW
P80C3xX2; P80C5xX2;
T2EX PIN
EXF2
TF2
COUNT
DIRECTION
1 = UP
0 = DOWN
TOGGLE
TF2
P87C5xX2
INTERRUPT
EXF2
Product data
SU01624
TIMER 2
SU01623
INTERRUPT