P87C51FB-4N,112 NXP Semiconductors, P87C51FB-4N,112 Datasheet - Page 15

• Manufacturer Part Number: P87C51FB-4N,112
• Description: IC 80C51 MCU 16K OTP 40-DIP
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C51FB-4N,112

• Program Memory Type: OTP
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, PWM
• 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: 16 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
• Cpu Family: 87C
• Device Core: 80C51
• Device Core Size: 8b
• Frequency (max): 16MHz
• Total Internal Ram Size: 256Byte
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 40
• Package Type: PDIP
• 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: 568-1010-5; 935258810112; P87C51FB-4N

Philips Semiconductors
Table 4. Timer 2 Operating Modes
2000 Aug 07
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
*
T2EX Pin
RCLK + TCLK
Symbol
—
T2OE
DCEN
T2 Pin
T2MOD
User software should not write 1s to reserved bits. These bits may be used in future 8051 family products to invoke new features.
In that case, the reset or inactive value of the new bit will be 0, and its active value will be 1. The value read from a reserved bit is
indeterminate.
OSC
X
0
0
1
Not Bit Addressable
Address = 0C9H
Function
Not implemented, reserved for future use.*
Timer 2 Output Enable bit.
Down Count Enable bit. When set, this allows Timer 2 to be configured as an up/down counter.
Bit
12
Transition
Detector
—
7
C/T2 = 0
C/T2 = 1
CP/RL2
X
X
0
1
EXEN2
—
6
Figure 3. Timer 2 Mode (T2MOD) Control Register
Control
Figure 2. Timer 2 in Capture Mode
TR2
—
5
Control
Capture
—
TR2
4
1
1
1
0
15
RCAP2L
(8-bits)
TL2
—
3
16-bit Auto-reload
16-bit Capture
Baud rate generator
(off)
(8-bits)
RCAP2H
TH2
—
2
8XC51RA+/RB+/RC+/RD+/80C51RA+
T2OE
1
8XC51FA/FB/FC/80C51FA
EXF2
TF2
MODE
Reset Value = XXXX XX00B
DCEN
0
Product specification
8XC54/58
SU00066
SU00729
Interrupt
Timer 2