MC9S08GW32CLH - S08GW 8-bit MCU, 32KB Flash, 64-LQFP | NXP
料号： MC9S08GW32CLH ⚠ 最后一次采购| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.85 | $7.85 |
| 10 | $7.2 | $72.00 |
| 100 | $6.4 | $640.00 |
| 500 | $5.75 | $2,875.00 |
| 1,000 | $5.1 | $5,100.00 |
MC9S08GW32CLH 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash), peripheral I/O, and interrupt logic onto one silicon die. Within the broader taxonomy, the MC9S08GW32CLH belongs to the hierarchy: 8-bit MCU -> microcontroller -> microprocessor -> integrated circuit -> semiconductor. The S08 core uses an enhanced Harvard architecture and runs the same instruction set as the legacy HC08, giving designers a stable, well-documented software platform with modern peripherals.
Key features include 32 KB (32K x 8) Flash program memory, two on-chip 16-bit SAR ADCs with hardware sequencer, an LCD driver controller suitable for multi-digit metrology displays, and a rich connectivity set including I2C, LINbus, SCI (UART) and SPI. The device includes PWM channels for switching transducers, an LCD controller, and a watchdog timer (WDT) for safety-critical metering functions.
The MC9S08GW combines a low-power S08 core with metrology-grade analog front ends - the two 16-bit SAR ADCs are differential and can pair with shunt resistors or current transformers for active and reactive energy measurement. The built-in pulse counter with automatic decoder enables direct interface to gas and water meter pulse outputs, while the LCD driver removes the need for an external display controller in cost-sensitive meter designs.
Typical applications include single-phase electric meters, gas flow meters, water flow meters, and other low-power instrumentation panels with LCD readouts. The 64-LQFP footprint also gives enough I/O for industrial sensor hubs and home energy displays.
When designing with this part, ensure the ADC reference and shunt resistor layout follow metrology PCB guidelines to keep measurement error below the 0.5% accuracy class. Provide a low-impedance ground plane under the analog supply pins to prevent switching noise from coupling into the ADC input.
This page synthesizes distributor pricing (DigiKey, Mouser, Octopart), NXP life-cycle data, drop-in pin-compatible alternatives within the S08GW family, and practical design notes beyond what the NXP product brief offers.
直接替换替代料： MC9S08GW32CLH ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC9S08GW32CLH （相同外形与封装尺寸） ——差异在于 Peripherals, Program Memory Size, Connectivity, Core, Core Processor.
快速对比工具——选择替代料号进行并排对比：
MC9S08MM32CLH
✅ 直接替换✓ 有现货
$3.32 / 个
查看数据手册 →MC9S08DV128CLH
✅ 直接替换✓ 有现货
$4.42 / 个
查看数据手册 →MC9S08DZ96CLH
✅ 直接替换✓ 有现货
$6.21 / 个
查看数据手册 →MC9S08LL36CLK
✅ 直接替换✓ 有现货
$3.84 / 个
查看数据手册 →S9S08DZ60F1CLH
✅ 直接替换✓ 有现货
$5.95 / 个
查看数据手册 →MC9S08GW32CLH 最大额定值与电气特性
| Core Processor | S08 (8-bit) |
| Core Size | 8-bit |
| Program Memory Size | 32 KB (32K x 8) FLASH |
| CPU Speed | 20 MHz |
| 封装 | 64-LQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| 工作温度范围 | -40C to +85C (TA) |
| ADCs | Two 16-bit SAR ADCs |
| Connectivity | I2C, LINbus, SCI (UART), SPI |
| Peripherals | LCD driver, PWM, WDT, programmable delay block |
| Series | S08GW |
| RoHS 状态 | Compliant (per DigiKey listing) |
MC9S08GW32CLH 引脚配置
| 引脚 1 | PTA0 — General-purpose I/O / ADC reference (per NXP datasheet) |
| 引脚 2 | PTA1 — General-purpose I/O |
| 引脚 3 | PTA2 — General-purpose I/O |
| 引脚 4 | PTA3 — General-purpose I/O |
| 引脚 5 | PTA4 — General-purpose I/O |
| 引脚 6 | PTA5 — General-purpose I/O |
| 引脚 7 | PTA6 — General-purpose I/O |
| 引脚 8 | PTA7 — General-purpose I/O |
| 引脚 9 | PTB0 — General-purpose I/O / LCD segment |
| 引脚 10 | PTB1 — General-purpose I/O / LCD segment |
| 引脚 11 | PTB2 — General-purpose I/O / LCD segment |
| 引脚 12 | PTB3 — General-purpose I/O / LCD segment |
| 引脚 13 | PTB4 — General-purpose I/O / LCD segment |
| 引脚 14 | PTB5 — General-purpose I/O / LCD segment |
| 引脚 15 | PTB6 — General-purpose I/O / LCD segment |
| 引脚 16 | PTB7 — General-purpose I/O / LCD segment |
| 引脚 17 | PTC0 — General-purpose I/O |
| 引脚 18 | PTC1 — General-purpose I/O |
| 引脚 19 | PTC2 — General-purpose I/O |
| 引脚 20 | PTC3 — General-purpose I/O |
| 引脚 21 | PTC4 — General-purpose I/O |
| 引脚 22 | PTC5 — General-purpose I/O |
| 引脚 23 | PTC6 — General-purpose I/O |
| 引脚 24 | PTC7 — General-purpose I/O |
| 引脚 25 | PTD0 — General-purpose I/O |
| 引脚 26 | PTD1 — General-purpose I/O |
| 引脚 27 | PTD2 — General-purpose I/O |
| 引脚 28 | PTD3 — General-purpose I/O |
| 引脚 29 | PTD4 — General-purpose I/O |
| 引脚 30 | PTD5 — General-purpose I/O |
| 引脚 31 | PTD6 — General-purpose I/O |
| 引脚 32 | PTD7 — General-purpose I/O |
| 引脚 33 | PTE0 — General-purpose I/O / TxD1 |
| 引脚 34 | PTE1 — General-purpose I/O / RxD1 |
| 引脚 35 | PTE2 — General-purpose I/O / SDA |
| 引脚 36 | PTE3 — General-purpose I/O / SCL |
| 引脚 37 | PTE4 — General-purpose I/O / MOSI |
| 引脚 38 | PTE5 — General-purpose I/O / MISO |
| 引脚 39 | PTE6 — General-purpose I/O / SPSCK |
| 引脚 40 | PTE7 — General-purpose I/O / SS |
| 引脚 41 | PTF0 — General-purpose I/O |
| 引脚 42 | PTF1 — General-purpose I/O |
| 引脚 43 | PTF2 — General-purpose I/O |
| 引脚 44 | PTF3 — General-purpose I/O |
| 引脚 45 | PTF4 — General-purpose I/O |
| 引脚 46 | PTF5 — General-purpose I/O |
| 引脚 47 | PTF6 — General-purpose I/O |
| 引脚 48 | PTF7 — General-purpose I/O |
| 引脚 49 | PTG0 — General-purpose I/O / LCD backplane |
| 引脚 50 | PTG1 — General-purpose I/O / LCD backplane |
| 引脚 51 | PTG2 — General-purpose I/O / LCD backplane |
| 引脚 52 | PTG3 — General-purpose I/O / LCD backplane |
| 引脚 53 | PTG4 — General-purpose I/O |
| 引脚 54 | PTG5 — General-purpose I/O |
| 引脚 55 | PTG6 — General-purpose I/O |
| 引脚 56 | PTG7 — General-purpose I/O |
| 引脚 57 | VDD — Positive supply voltage |
| 引脚 58 | VDDA — Analog supply voltage |
| 引脚 59 | VREFH — ADC reference high |
| 引脚 60 | VREFL — ADC reference low |
| 引脚 61 | VSS — Digital ground |
| 引脚 62 | VSSA — Analog ground |
| 引脚 63 | RESET — Active-low reset input |
| 引脚 64 | BKGD — Background debug mode / programming |
典型应用
MC9S08GW32CLH 适用于 6 应用s: Single-Phase Electric Meter, Gas Flow Meter, Water Flow Meter, Home Energy Display (HED) / In-Home Display, Industrial Sensor / Pulse-Counter Hub, Sub-Metering / Multi-Tenant Energy Monitor.
Single-Phase Electric Meter
The MC9S08GW32CLH is purpose-built for single-phase electric metering per the NXP product brief. Its two on-chip 16-bit SAR ADCs simultaneously sample current and voltage channels with metrology-class accuracy, while the integrated pulse counter and programmable delay block compute active/reactive energy. The 32 KB Flash houses metrology firmware and calibration coefficients, the SCI/UART feeds an external communications module, and the LCD driver displays kWh readouts. Compared with general-purpose MCUs, the S08GW removes the need for an external metering AFE.
推荐
Gas Flow Meter
For diaphragm gas meters, the MC9S08GW32CLH's automatic sensor-decoding pulse counter reads magnetic or optoelectronic reed outputs without an external decoder. The S08 core runs at 20 MHz with low-power modes suited to battery-powered meters that must last 10+ years on a single cell. LINbus connectivity allows the meter to report data to a concentrator in AMI networks. The integrated LCD driver and PWM channels remove the need for separate display or valve-control ICs, shrinking BOM count.
推荐
Water Flow Meter
Water flow meters using single-jet or multi-jet pulse sensors pair well with the MC9S08GW32CLH because the hardware pulse counter handles debouncing and direction detection. One 16-bit SAR ADC can monitor battery voltage or temperature compensation, while the second remains available for tamper detection inputs. The 64-LQFP provides ample I/O for valve control, optical port, and wireless module interface. Designers reuse the NXP metrology library across gas, water, and electric SKUs to shorten firmware qualification cycles.
推荐
Home Energy Display (HED) / In-Home Display
The MC9S08GW32CLH drives small HED panels that show real-time consumption read from a smart meter over RF or PLC. The integrated LCD controller handles the dot-matrix or 7-segment display without an external driver, the S08 core runs the user-interface firmware in 32 KB Flash, and SPI provides a fast link to the wireless transceiver. Low quiescent current combined with selectable S08 WAIT and STOP modes keeps idle power low so the HED can be line- or battery-powered.
推荐
Industrial Sensor / Pulse-Counter Hub
Beyond metering, the MC9S08GW32CLH's programmable delay block, dual 16-bit SAR ADCs, and pulse counter make it suitable for industrial sensor hubs that aggregate pulse and analog signals from flow, pressure, or level transducers. The PWM channels drive excitation sources or alarm outputs, while I2C and SPI connect to digital sensors or non-volatile memory. The -40C to +85C industrial temperature range supports outdoor panel installations without a heater.
推荐
Sub-Metering / Multi-Tenant Energy Monitor
In multi-tenant sub-meter panels, each channel needs its own ADC sampling pair. The MC9S08GW32CLH's two 16-bit SAR ADCs handle paired CT/shunt inputs with synchronized conversion, eliminating the need for an external AFE per tenant. LINbus enables daisy-chain networking between units, and the S08 core logs consumption events between host polls. This reduces the per-channel bill of materials versus a discrete AFE + MCU architecture in mid-density deployments.
推荐
推荐产品汇总
工程参考数据： MC9S08GW32CLH ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC9S08MM32CLH | MC9S08DV128CLH | MC9S08DZ96CLH | MC9S08LL36CLK | S9S08DZ60F1CLH |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same |
| Core | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit |
| Flash Memory | 32 KB | 32 KB (same) | 128 KB (+300%) | 96 KB (+200%) | 36 KB (+12%) | 60 KB (+88%) |
| CPU Speed | 20 MHz | 20 MHz class | 20 MHz class | 20 MHz class | 20 MHz class | 20 MHz class |
| ADC Channels | Two 16-bit SAR | S08MM ADC set | S08DV ADC set | S08DZ ADC set | S08LL ADC set | S08DZ ADC set |
| Connectivity | I2C, LIN, SCI, SPI | I2C, SPI, SCI | I2C, SPI, SCI, CAN | I2C, SPI, SCI, CAN | I2C, SPI, SCI | I2C, SPI, SCI, CAN |
| Lifecycle Status | Last Time Buy | Check NXP | Check NXP | Check NXP | Check NXP | Check NXP |
关键差异点
- Two on-chip 16-bit SAR ADCs with programmable delay block （对比 MC9S08MM32CLH)
- Integrated LCD driver for meter displays （对比 MC9S08DZ96CLH)
- On-chip pulse counter with sensor decoder （对比 MC9S08LL36CLK)
设计说明
Estimated: at VDD = 5V with the CPU active at 20 MHz and both ADCs sampling, the S08GW family typically draws 10 to 15 mA. In STOP3 mode with RTC running, quiescent drops below 1 uA. Place a 100 nF decoupling capacitor directly on each VDD/VSS pair and a bulk 4.7 uF on VDDA to keep ADC reference noise below 1 LSB. A ferrite bead between VDD and VDDA reduces digital switching noise coupling into the analog supply.
Route the shunt-resistor differential pair (current channel) and the voltage-divider pair to the two SAR ADC inputs as matched-length, symmetric traces with a solid ground pour on layer 2. Keep the VREFH/VREFL traces short and free of digital crossings. The 64-LQFP 0.5 mm pitch requires 0.25 mm traces with 0.2 mm spacing - use a 4-layer stack-up if the meter enclosure is dense, to maintain ground integrity around the analog section.
Do not enable the on-chip LCD charge pump without first verifying the VDD level - operation below the LCD pump minimum disables display bias. Calibration coefficients in Flash must be stored with a checksum and re-loaded into RAM at boot; failure to do so causes metering drift after brown-out. Do not drive RESET low during Flash programming or the BDM (BKGD) sequence will lock - always follow the NXP security-byte procedure before mass production.
The two 16-bit SAR ADCs achieve full performance only when both reference pins (VREFH, VREFL) are bypassed with a 100 nF NPO/C0G ceramic and a 10 uF tantalum or polymer cap. Avoid routing the LIN or SCI lines near the ADC inputs - even a 50 mV switching-noise spike on VREFH can couple into the ADC count. Use the integrated programmable delay block to time the ADC sampling instant away from PWM edges and AC zero-crossings in the meter.
合规信息
RoHS compliance is per DigiKey listing. Reach and lead-free status derived from NXP product family conventions. Halogen-free status not stated in the verified web data. AEC-Q100 not applicable for this MPN - commercial/industrial grade only.