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P89LPC916 Datasheet

8-bit microcontrollers

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P89LPC915/916/917
8-bit microcontrollers with accelerated two-clock 80C51 core
2 kB 3 V flash with 8-bit A/D converter
Rev. 05 — 15 December 2009
Product data sheet
1. General description
The P89LPC915/916/917 are single-chip microcontrollers, 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 P89LPC915/916/917 in order to reduce component
count, board space, and system cost.
2. Features
2.1 Principal features
I 2 kB byte-erasable flash code memory organized into 256-byte sectors and 16-byte
pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage.
I 256-byte RAM data memory.
I Two 16-bit counter/timers. Timer 0 (and Timer 1 - P89LPC917) may be configured to
toggle a port output upon timer overflow or to become a PWM output.
I 23-bit system timer that can also be used as a Real-Time clock.
I 4-input multiplexed 8-bit A/D converter/single DAC output. Two analog comparators
with selectable reference.
I Enhanced UART with fractional baud rate generator, break detect, framing error
detection, automatic address detection and versatile interrupt capabilities.
I SPI communication port (P89LPC916).
I Internal RC oscillator option allows operation without external oscillator components.
The RC oscillator (factory calibrated to ±1 %) option is selectable and fine tunable.
I 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).
I Up to 14 I/O pins when using internal oscillator and reset options (P89LPC916,
P89LPC917).
2.2 Additional features
I 14-pin (P89LPC915) and 16-pin (P89LPC916, P89LPC917) TSSOP packages.
I 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.
I In-Application Programming (IAP-Lite) and byte erase allows code memory to be used
for non-volatile data storage.


NXP Semiconductors Electronic Components Datasheet

P89LPC916 Datasheet

8-bit microcontrollers

No Preview Available !

NXP Semiconductors
P89LPC915/916/917
8-bit microcontrollers with accelerated two-clock 80C51 core
I Serial Flash In-Circuit Programming (ICP) allows simple production coding with
commercial EPROM programmers. Flash security bits prevent reading of sensitive
application programs.
I Watchdog timer with separate on-chip oscillator, requiring no external components.
The Watchdog prescaler is selectable from 8 values.
I Low voltage brownout detect allows a graceful system shutdown when power fails.
May optionally be configured as an interrupt.
I 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).
I 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.
I Programmable port output configuration options: quasi-bidirectional, open drain,
push-pull, input-only.
I 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.
I LED drive capability (20 mA) on all port pins. A maximum limit is specified for the
entire chip.
I Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns
minimum ramp times.
I Only power and ground connections are required to operate the P89LPC915/916/917
when internal reset option is selected.
I Four interrupt priority levels.
I Five (P89LPC916), six (P89LPC915), or seven (P89LPC917) keypad interrupt inputs.
I Second data pointer.
I Schmitt trigger port inputs.
I Emulation support.
3. Product comparison overview
Table 1 highlights the differences between these three devices. For a complete list of
device features, please see Section 2 “Features”.
Table 1. Product comparison overview
Type number Comparator 2 SPI
output
T1 toggle/PWM CLKOUT INT1
P89LPC915
X
-
-
-X
P89LPC916
-
X
-
--
P89LPC917
X
-
X
XX
KBI
6
5
7
P89LPC915_916_917_5
Product data sheet
Rev. 05 — 15 December 2009
© NXP B.V. 2009. All rights reserved.
2 of 75


Part Number P89LPC916
Description 8-bit microcontrollers
Maker NXP Semiconductors
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P89LPC916 Datasheet PDF






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