P89LPC922FDH,512 NXP Semiconductors, P89LPC922FDH,512 Datasheet - Page 14
![IC 80C51 MCU FLASH 8K 20-TSSOP](/photos/6/52/65219/568-20-tssop_sot360-1_sml.jpg)
P89LPC922FDH,512
Manufacturer Part Number
P89LPC922FDH,512
Description
IC 80C51 MCU FLASH 8K 20-TSSOP
Manufacturer
NXP Semiconductors
Series
LPC900r
Datasheet
1.P89LPC922FDH512.pdf
(46 pages)
Specifications of P89LPC922FDH,512
Core Processor
8051
Core Size
8-Bit
Speed
18MHz
Connectivity
I²C, UART/USART
Peripherals
Brown-out Detect/Reset, LED, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-TSSOP
Processor Series
P89LPC9x
Core
80C51
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
I2C, UART
Maximum Clock Frequency
18 MHz
Number Of Programmable I/os
18
Number Of Timers
2
Operating Supply Voltage
2.4 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
For Use With
622-1014 - BOARD FOR LPC9XX TSSOP622-1010 - BOARD FOR LPC922 TSSOP622-1008 - BOARD FOR LPC9103 10-HVSON622-1006 - SOCKET ADAPTER BOARDEPM900K - EMULATOR/PROGRAMMER NXP P89LPC9568-4000 - DEMO BOARD SPI/I2C TO DUAL UART568-3510 - DEMO BOARD SPI/I2C TO UART622-1002 - USB IN-CIRCUIT PROG LPC9XX568-1759 - EMULATOR DEBUGGER/PROGRMMR LPC9X
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Other names
568-2452
935273788512
P89LPC922FDH
935273788512
P89LPC922FDH
Philips Semiconductors
8. Functional description
9397 750 14469
Product data
8.2.1 Clock definitions
8.2.2 CPU clock (OSCCLK)
8.2.3 Low speed oscillator option
8.2.4 Medium speed oscillator option
8.2.5 High speed oscillator option
8.1 Enhanced CPU
8.2 Clocks
Remark: Please refer to the P89LPC920/921/922/9221 User’s Manual for a more
detailed functional description.
The P89LPC920/921/922/9221 uses an enhanced 80C51 CPU which runs at 6 times
the speed of standard 80C51 devices. A machine cycle consists of two CPU clock
cycles, and most instructions execute in one or two machine cycles.
The P89LPC920/921/922/9221 device has several internal clocks as defined below:
OSCCLK — Input to the DIVM clock divider. OSCCLK is selected from one of four
clock sources (see
(see
Note: f
CCLK — CPU clock; output of the clock divider. There are two CCLK cycles per
machine cycle, and most instructions are executed in one to two machine cycles (two
or four CCLK cycles).
RCCLK — The internal 7.373 MHz RC oscillator output.
PCLK — Clock for the various peripheral devices and is CCLK/2
The P89LPC920/921/922/9221 provides several user-selectable oscillator options in
generating the CPU clock. This allows optimization for a range of needs from high
precision to lowest possible cost. These options are configured when the FLASH is
programmed and include an on-chip watchdog oscillator, an on-chip RC oscillator, an
oscillator using an external crystal, or an external clock source. The crystal oscillator
can be optimized for low, medium, or high frequency crystals covering a range from
20 kHz to 12 MHz.
This option supports an external crystal in the range of 20 kHz to 100 kHz. Ceramic
resonators are also supported in this configuration.
This option supports an external crystal in the range of 100 kHz to 4 MHz. Ceramic
resonators are also supported in this configuration.
This option supports an external crystal in the range of 4 MHz to 18 MHz. Ceramic
resonators are also supported in this configuration. When using an oscillator
frequency above 12 MHz, the reset input function of P1.5 must be enabled. An
external circuit is required to hold the device in reset at power-up until V
reached its specified level. When system power is removed V
Section 8.7 “CPU Clock (CCLK) modification: DIVM
osc
is defined as the OSCCLK frequency.
Rev. 08 — 15 December 2004
Figure
5) and can also be optionally divided to a slower frequency
P89LPC920/921/922/9221
8-bit microcontrollers with two-clock 80C51 core
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
register”).
DD
will fall below
DD
14 of 46
has