P87C51RB2BBD,157 NXP Semiconductors, P87C51RB2BBD,157 Datasheet - Page 18

• Manufacturer Part Number: P87C51RB2BBD,157
• Description: IC 80C51 MCU 512 RAM 44LQFP
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C51RB2BBD,157

• Program Memory Type: OTP
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 44-LQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Ram Size: 512 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: 512 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM10064 - EMULATOR 80C51 PDS51-MK2
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935271877157; P87C51RB2BBD; P87C51RB2BBD

Philips Semiconductors
2003 Jan 24
80C51 8-bit microcontroller family
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
* n = 6 in 6-clock mode, or 12 in 12-clock mode.
* n = 6 in 6-clock mode, or 12 in 12-clock mode.
T2EX PIN
OSC
T2 PIN
OSC
T2 PIN
n*
TRANSITION
DETECTOR
n*
C/T2 = 0
C/T2 = 1
C/T2 = 0
C/T2 = 1
EXEN2
TR2
Figure 4. Timer 2 in Auto-Reload Mode (DCEN = 0)
8KB/16KB/32KB/64KB OTP
CONTROL
Figure 5. Timer 2 Auto Reload Mode (DCEN = 1)
CONTROL
TR2
(DOWN COUNTING RELOAD VALUE)
CONTROL
(UP COUNTING RELOAD VALUE)
RELOAD
RCAP2L
FFH
TL2
18
(8 BITS)
RCAP2L
RCAP2H
TL2
FFH
TH2
(8 BITS)
OVERFLOW
RCAP2H
TH2
P87C51RA2/RB2/RC2/RD2
T2EX PIN
EXF2
TF2
COUNT
DIRECTION
1 = UP
0 = DOWN
TOGGLE
TF2
EXF2
INTERRUPT
INTERRUPT
SU01254
Product data
TIMER 2
SU01253