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P89LPC933/934/935/936
8-bit microcontroller with accelerated two-clock 80C51 core
4 kB/8 kB/16 kB 3 V byte-erasable flash with 8-bit ADCs
Rev. 06 — 20 June 2005
Product data sheet
1. General description
The P89LPC933/934/935/936 is a single-chip microcontroller, available in low cost
packages, based on a high performance processor architecture that executes instructions
in two to four clocks, six times the rate of standard 80C51 devices. Many system-level
functions have been incorporated into the P89LPC933/934/935/936 in order to reduce
component count, board space, and system cost.
2. Features
2.1 Principal features
s 4 kB/8 kB/16 kB byte-erasable flash code memory organized into 1 kB/2 kB sectors
and 64-byte pages. Single-byte erasing allows any byte(s) to be used as non-volatile
data storage.
s 256-byte RAM data memory. Both the P89LPC935 and P89LPC936 also include a
512-byte auxiliary on-chip RAM.
s 512-byte customer data EEPROM on chip allows serialization of devices, storage of
setup parameters, etc. (P89LPC935/936).
s Dual 4-input multiplexed 8-bit A/D converters/DAC outputs (P89LPC935/936, single
A/D on P89LPC933/934).Two analog comparators with selectable inputs and
reference source.
s Two 16-bit counter/timers (each may be configured to toggle a port output upon timer
overflow or to become a PWM output) and a 23-bit system timer that can also be used
as an RTC.
s Enhanced UART with fractional baud rate generator, break detect, framing error
detection, and automatic address detection; 400 kHz byte-wide I2C-bus
communication port and SPI communication port.
s Capture/Compare Unit (CCU) provides PWM, input capture, and output compare
functions (P89LPC935/936).
s High-accuracy internal RC oscillator option allows operation without external oscillator
components.The RC oscillator option is selectable and fine tunable.
s 2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up or
driven to 5.5 V).
s 28-pin TSSOP, PLCC, and HVQFN packages with 23 I/O pins minimum and up to 26
I/O pins while using on-chip oscillator and reset options.
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Philips Semiconductors
P89LPC933/934/935/936
8-bit microcontroller with accelerated two-clock 80C51 core
2.2 Additional features
s A high performance 80C51 CPU provides instruction cycle times of 111 ns to 222 ns
for all instructions except multiply and divide when executing at 18 MHz. This is six
times the performance of the standard 80C51 running at the same clock frequency. A
lower clock frequency for the same performance results in power savings and reduced
EMI.
s Serial flash In-Circuit Programming (ICP) allows simple production coding with
commercial EPROM programmers. Flash security bits prevent reading of sensitive
application programs.
s Serial flash In-System Programming (ISP) allows coding while the device is mounted
in the end application.
s In-Application Programming (IAP) of the flash code memory. This allows changing the
code in a running application.
s Watchdog timer with separate on-chip oscillator, requiring no external components.
The watchdog prescaler is selectable from eight values.
s Low voltage reset (brownout detect) allows a graceful system shutdown when power
fails. May optionally be configured as an interrupt.
s Idle and two different power-down reduced power modes. Improved wake-up from
Power-down mode (a LOW interrupt input starts execution). Typical power-down
current is 1 µA (total power-down with voltage comparators disabled).
s Active-LOW reset. On-chip power-on reset allows operation without external reset
components. A reset counter and reset glitch suppression circuitry prevent spurious
and incomplete resets. A software reset function is also available.
s Configurable on-chip oscillator with frequency range options selected by user
programmed flash configuration bits. Oscillator options support frequencies from
20 kHz to the maximum operating frequency of 18 MHz.
s Oscillator fail detect. The watchdog timer has a separate fully on-chip oscillator
allowing it to perform an oscillator fail detect function.
s Programmable port output configuration options: quasi-bidirectional, open drain,
push-pull, input-only.
s Port ‘input pattern match’ detect. Port 0 may generate an interrupt when the value of
the pins match or do not match a programmable pattern.
s LED drive capability (20 mA) on all port pins. A maximum limit is specified for the
entire chip.
s Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns
minimum ramp times.
s Only power and ground connections are required to operate the
P89LPC933/934/935/936 when internal reset option is selected.
s Four interrupt priority levels.
s Eight keypad interrupt inputs, plus two additional external interrupt inputs.
s Schmitt trigger port inputs.
s Second data pointer.
s Emulation support.
9397 750 15113
Product data sheet
DataSheet4 U .com
Rev. 06 — 20 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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Philips Semiconductors
P89LPC933/934/935/936
8-bit microcontroller with accelerated two-clock 80C51 core
3. Product comparison overview
Table 1 highlights the differences between the four devices. For a complete list of device
features please see Section 2 “Features”.
Table 1: Product comparison overview
Device
Flash memory Sector size ADC1
P89LPC933
4 kB
1 kB
X
P89LPC934
8 kB
1 kB
X
P89LPC935
8 kB
1 kB
X
P89LPC936
16 kB
2 kB
X
ADC0
-
-
X
X
CCU
-
-
X
X
Data EEPROM
-
-
X
X
4. Ordering information
Table 2: Ordering information
Type number
Package
Name
Description
Version
P89LPC935FA
PLCC28 plastic leaded chip carrier; 28 leads SOT261-2
P89LPC933FDH
P89LPC934FDH
TSSOP28 plastic thin shrink small outline
SOT361-1
package; 28 leads; body width 4.4 mm
P89LPC935FDH
P89LPC936FDH
P89LPC935FHN
HVQFN28 plastic thermal enhanced very thin
quad flat package; no leads;
28 terminals; body 6 × 6 × 0.85 mm
SOT788-1
4.1 Ordering options
Table 3: Ordering options
Type number
Flash memory Temperature range
P89LPC933FDH
4 kB
40 °C to +85 °C
P89LPC935FA
8 kB
P89LPC934FDH
P89LPC935FDH
P89LPC935FHN
P89LPC936FDH
16 kB
Frequency
0 MHz to 18 MHz
9397 750 15113
Product data sheet
DataSheet4 U .com
Rev. 06 — 20 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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