参数资料
型号: P89LPC9361FDH,518
厂商: NXP Semiconductors
文件页数: 58/94页
文件大小: 0K
描述: IC MCU 80C51 16KB FLASH 28TSSOP
标准包装: 1
系列: LPC900
核心处理器: 8051
芯体尺寸: 8-位
速度: 18MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,温度传感器,WDT
输入/输出数: 26
程序存储器容量: 16KB(16K x 8)
程序存储器类型: 闪存
EEPROM 大小: 512 x 8
RAM 容量: 768 x 8
电压 - 电源 (Vcc/Vdd): 2.4 V ~ 3.6 V
数据转换器: A/D 8x8b; D/A 2x8b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
包装: 标准包装
P89LPC9331_9341_9351_9361
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 5.1 — 20 August 2012
61 of 94
NXP Semiconductors
P89LPC9331/9341/9351/9361
8-bit microcontroller with accelerated two-clock 80C51 core
8.4 PGA (P89LPC9351/9361)
Additional PGA module is integrated in each ADC module to improve the effective
resolution of the ADC. A single channel can be selected for amplification. The gain of PGA
can be programmable to 2, 4, 8 and 16. Please refer to Table 12 “Static characteristics” for
detailed specifications.
Register PGACONx and PGACONxB are used to for PGA configuration. Register
PGAxTRIM2X4X and PGAxTRIM8X16X provide trim value of PGA gain level. As
power-on, default trim value for each gain setting is loaded into the PGA trim registers.
For accurate measurements, offset calibration is required.
Please see the P89LPC9331/9341/9351/9361 User manual for detail configuration,
calibration, and usage information.
8.5 Temperature sensor
An on-chip wide-temperature range temperature sensor is integrated with ADC0 module.
It provides temperature sensing capability of
40 C ~ 85 C. It is necessary to measure
the 1.2 V reference voltage via the ADC before measuring temperature. In
P89LPC9351/9361, the reference voltage, temperature sensor and AD03 input pin
multiplex one input to PGA0. Please see the P89LPC9331/9341/9351/9361 User manual
for detail usage of temperature sensor.
Fig 24. P89LPC9351/9361 ADC block diagram
+
comp
PGA0
AD00
8
CONTROL
LOGIC
AD01
AD02
AD03
Vref(bg)
Vsen
+
comp
to comparators
SAR
8
input MUX
Anin00
Anin01
Anin02
Anin03
input MUX
CCLK
002aad576
PGA1
AD10
4
AD11
AD12
AD13
DAC0
DAC1
Anin10
Anin11
Anin12
Anin13
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