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P87C51RD2 microcontroller Datasheet |
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| Part Number | P87C51RD2 |
| Description | 80C51 8-bit microcontroller |
| Manufacture | NXP |
| Total Page | 30 Pages |
| PDF Download |
INTEGRATED CIRCUITS
P87C51RA2/RB2/RC2/RD2
80C51 8-bit microcontroller family
8KB/16KB/32KB/64KB OTP, 512B/512B/512B/1KB RAM,
low voltage (2.7 to 5.5 V), low power, high speed
(30/33 MHz)
Product data
Supersedes data of 2002 Oct 28
2003 Jan 24
Philips
Semiconductors
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Philips Semiconductors
80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
Product data
P87C51RA2/RB2/RC2/RD2
DESCRIPTION
The devices are Single-Chip 8-Bit Microcontrollers manufactured in
an advanced CMOS process and are derivatives of the 80C51
microcontroller family. The instruction set is 100% compatible with
the 80C51 instruction set.
The devices support 6-clock/12-clock mode selection by
programming an OTP bit (OX2) using parallel programming. In
addition, an SFR bit (X2) in the clock control register (CKCON)
also selects between 6-clock/12-clock mode.
The devices also have four 8-bit I/O ports, three 16-bit timer/event
counters, a multi-source, four-priority-level, nested interrupt structure,
an enhanced UART and on-chip oscillator and timing circuits.
The added features of the P87C51RA2/RB2/RC2/RD2 make it a
powerful microcontroller for applications that require pulse width
modulation, high-speed I/O and up/down counting capabilities such
as motor control.
FEATURES
• 80C51 Central Processing Unit
– 8 kbytes OTP (87C51RA2)
– 16 kbytes OTP (87C51RB2)
– 32 kbytes OTP (87C51RC2)
– 64 kbytes OTP (87C51RD2)
– 512 byte RAM (87C51RA2/RB2/RC2)
– 1 kbyte RAM (87C51RD2)
– Boolean processor
– Fully static operation
– Low voltage (2.7 V to 5.5 V at 16 MHz) operation
• 12-clock operation with selectable 6-clock operation (via software
or via parallel programmer)
• Memory addressing capability
– Up to 64 kbytes ROM and 64 kbytes RAM
• Power control modes:
– Clock can be stopped and resumed
– Idle mode
– Power-down mode
• CMOS and TTL compatible
• Two speed ranges at VCC = 5 V
– 0 to 30 MHz with 6-clock operation
– 0 to 33 MHz with 12-clock operation
• Parallel programming with 87C51 compatible hardware interface
to programmer
• RAM expandable externally to 64 kbytes
• Programmable Counter Array (PCA)
– PWM
– Capture/compare
• PLCC, LQFP, or DIP package
• Extended temperature ranges
• Dual Data Pointers
• Security bits (3 bits)
• Encryption array - 64 bytes
• Seven interrupt sources
• 4 interrupt priority levels
• Four 8-bit I/O ports
• Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
• Three 16-bit timers/counters T0, T1 (standard 80C51) and
additional T2 (capture and compare)
• Programmable clock-out pin
• Asynchronous port reset
• Low EMI (inhibit ALE, slew rate controlled outputs, and 6-clock
mode)
• Wake-up from Power Down by an external interrupt
2003 Jan 24
2 853–2391 29335
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| Features | INTEGRATED CIRCUITS P87C51RA2/RB2/RC2/R D2 80C51 8-bit microcontroller family 8 KB/16KB/32KB/64KB OTP, 512B/512B/512B/1 KB RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz) Product data Supersedes data of 2002 Oct 28 2 003 Jan 24 Philips Semiconductors Phi lips Semiconductors 80C51 8-bit microco ntroller family 8KB/16KB/32KB/64KB OTP with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MH z) Product data P87C51RA2/RB2/RC2/RD2 DESCRIPTION The devices are Single-Chi p 8-Bit Microcontrollers manufactured i n an advanced CMOS process and are deri vatives of the 80C51 microcontroller fa mily. The instruction set is 100% compa tible with the 80C51 instruction set. T he devices support 6-clock/12-clock mod e selection by programming an OTP bit ( OX2) using parallel programming. In add ition, an SFR bit (X2) in the clock con trol register (CKCON) also selects betw een 6-clock/12-clock mode. The devices also have four 8-bit I/O ports, three 16-bit timer/event counte. |
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