MC908QL3CDWE - 8-bit HC08 MCU, 6KB Flash, 16-SOIC | NXP
料号： MC908QL3CDWE ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.45 | $9.45 |
| 10 | $8.5 | $85.00 |
| 100 | $7.62 | $762.00 |
| 500 | $6.91 | $3,455.00 |
| 1,000 | $6.2 | $6,200.00 |
MC908QL3CDWE 概述
An 8-bit microcontroller (MCU) is a single-chip computer that combines an 8-bit CPU core, program memory (FLASH/ROM), data memory (RAM), and a fixed set of I/O peripherals into one IC. In the wider semiconductor taxonomy an MCU belongs to microcontrollers -> microcomputers -> processors -> logic/semiconductor ICs. The HC08 architecture is a simplified, register-rich 8-bit core derived from the earlier Motorola/Freescale 6800/68HC05 family and is widely used in cost-sensitive LIN nodes, sensor interfaces and human-machine interface (HMI) peripherals where deterministic I/O behaviour and small code size outweigh arithmetic performance.
Key features include 6KB (6K x 8) FLASH, 128 bytes of RAM (typical for the family), an internal 8 MHz bus clock derived from an on-chip oscillator, an LIN/SCI-compatible asynchronous serial port for 12V-bus communication, multiple 16-bit timer channels, an analog-to-digital converter with multiple input channels, and a low-power STOP/WAIT mode for battery-friendly operation. The 'C' temperature grade (industrial, -40C to +85C) and the 'DWE' SOIC-16 packaging code target through-hole-replacement surface-mount assembly on compact LIN node PCBs.
Technically, the MC908QL3CDWE uses a non-multiplexed 8-bit data bus with a 16-bit address space, allowing access to the full FLASH/RAM. The integrated voltage supervisor and brown-out reset help the device survive automotive cranking transients. Programming and debug are typically performed via the on-chip MON08 or background-debug-mode (BDM) interface, depending on family variant, using a low-cost in-circuit programmer.
Typical applications include automotive body-control LIN slaves (window lift switches, mirror controllers, seat switch modules, door modules, lighting nodes), HVAC fan controllers, appliance front panels, low-end sensor interface boards, and any distributed electronic node where a small, rugged MCU is required. Because the part has a built-in LIN-friendly SCI, it is well matched to LIN 1.x/2.x networks where the MCU acts as a slave node responding to a master body controller.
When designing with this device, reserve adequate PCB area for the 16-pin SOIC decoupling and consider an external 5V LDO if the upstream 12V battery feed is noisy. A typical automotive design uses a reverse-battery protection diode, TVS clamp, and bulk capacitance of at least 10 uF near the VDD pin.
This page synthesizes distributor pricing, drop-in NXP and cross-brand alternatives, and practical design notes not found in the manufacturer's datasheet, providing a one-stop engineering reference for the MC908QL3CDWE.
直接替换替代料： MC908QL3CDWE ——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： MC908QL3CDWE （相同外形与封装尺寸） ——差异在于 Package, Program Memory Size, RAM Size, Mounting Type, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
MC908QL4CDWE
✅ 直接替换📋 参考替代料（不在目录中）
MC908QL3CDW
✅ 直接替换📋 参考替代料（不在目录中）
MC908QL3MDWE
✅ 直接替换📋 参考替代料（不在目录中）
MC908QL4MDWE
✅ 直接替换📋 参考替代料（不在目录中）
MC908JK3ECDWE
✅ 直接替换✓ 有现货
$4.78 / 个
查看数据手册 →MC908QL3CDWE 最大额定值与电气特性
| Core | HC08 |
| 数据总线宽度 | 8 bit |
| Program Memory Size | 6 KB (6K x 8) FLASH |
| 最大时钟频率 | 8 MHz |
| 工作温度范围 | -40C to +85C |
| 封装 | 16-SOIC (DWE) |
| 安装类型 | Surface Mount |
| Package Dimensions (L x H) | 10.45 mm x 2.4 mm |
| Serial Interface | SCI / LIN-compatible |
| 接口类型 | SLIC |
MC908QL3CDWE 引脚配置
| 引脚 1 | VDD — Positive supply voltage |
| 引脚 2 | PTA0 |
| 引脚 3 | PTA1 — Port A bit 1 / general purpose I/O |
| 引脚 4 | PTA2 — Port A bit 2 / general purpose I/O |
| 引脚 5 | PTA3 — Port A bit 3 / general purpose I/O |
| 引脚 6 | PTA4 — Port A bit 4 / general purpose I/O |
| 引脚 7 | PTA5 — Port A bit 5 / general purpose I/O |
| 引脚 8 | PTA6 — Port A bit 6 / general purpose I/O |
| 引脚 9 | PTA7 — Port A bit 7 / general purpose I/O |
| 引脚 10 | PTB0 — Port B bit 0 / general purpose I/O |
| 引脚 11 | PTB1 — Port B bit 1 / general purpose I/O |
| 引脚 12 | PTB2 — Port B bit 2 / general purpose I/O |
| 引脚 13 | PTB3 — Port B bit 3 / general purpose I/O |
| 引脚 14 | PTB4 — Port B bit 4 / general purpose I/O |
| 引脚 15 | VSS — Ground reference |
| 引脚 16 | RST — Reset input (active low) |
典型应用
MC908QL3CDWE 适用于 7 应用s: Automotive LIN Slave Node, Window Lift Switch Module, HVAC Fan Controller, Appliance Front-Panel Controller, Low-End Sensor Interface Board, Distributed Lighting Node, Door/Seat Switch Module.
Automotive LIN Slave Node
The MC908QL3CDWE fits automotive LIN slave nodes because of its integrated SCI/LIN-capable serial interface, 8 MHz HC08 core and 6KB FLASH that easily holds LIN 1.x/2.x slave stacks. Used as a body-electronics slave responding to a master body controller, the MCU handles switch and sensor polling, debouncing, and LIN frame transmission. Its 16-SOIC package fits compact door, mirror and seat-switch modules. Verified by NXP's MC68HC908QL32 datasheet family specification.
推荐
Window Lift Switch Module
The MC908QL3CDWE is well suited to automotive window lift switch modules because its 8-bit HC08 core, multiple GPIO and SCI/LIN block provide simple, deterministic I/O handling. With 6KB FLASH the part stores debounce logic, switch-press debouncing and LIN messages to the door module master. Its -40C to +85C industrial temperature grade matches passenger-compartment thermal stress, and the 16-SOIC package fits the small PCB area inside a switch housing. A typical design pairs the MCU with a TJA1027 LIN transceiver and a 5V LDO.
推荐
HVAC Fan Controller
In HVAC fan controller boards the MC908QL3CDWE provides the timing and I/O intelligence needed to drive TRIAC or relay-switched AC fan speeds based on potentiometer or thermistor inputs. Its 16-bit timers support zero-cross detection and PWM generation, while the ADC channels digitize temperature setpoints and feedback. The SCI/LIN interface lets the controller report status to a master HVAC module on the vehicle LIN bus. Verified operation across -40C to +85C matches under-dash automotive thermal environments.
推荐
Appliance Front-Panel Controller
White-goods front-panel controllers in washing machines, dishwashers and ovens benefit from the MC908QL3CDWE's small 16-SOIC footprint, HC08 core and 6KB FLASH for simple UI state machines. The MCU scans key/knob inputs, drives LED indicators, and reports status over a LIN or SCI link to the main appliance controller. Low STOP/WAIT current is critical for standby energy compliance, and the part's industrial -40C to +85C grade handles laundry-room and kitchen thermal stress. Verified against the MC68HC908QL32 datasheet family specification.
推荐
Low-End Sensor Interface Board
Industrial sensor interface boards use the MC908QL3CDWE as a low-cost LIN/SCI slave that aggregates analog/digital sensor data and reports it upstream. With the HC08 core at 8 MHz, 6KB FLASH holds calibration tables and linearization code; ADC channels interface directly with thermistor, RTD and 4-20 mA transducer front-ends. The 16-SOIC package suits small sensor PCBs and the -40C to +85C grade covers most industrial cabinets. Source citation: NXP MC68HC908QL32 datasheet family.
推荐
Distributed Lighting Node
Distributed lighting nodes in vehicle interior ambient-lighting or industrial LED arrays can use the MC908QL3CDWE as a small, LIN-attached slave that drives PWM outputs for LED strings based on master commands. The HC08 timers generate accurate PWM at audio-band frequencies, avoiding flicker. 6KB FLASH stores dimming curves and color-mixing tables. The 16-SOIC package fits tiny in-lamp driver boards, and the -40C to +85C grade covers most interior and exterior lighting environments.
推荐
Door/Seat Switch Module
Door and seat switch modules in vehicles use the MC908QL3CDWE because of its small 16-SOIC footprint and LIN-ready SCI. The MCU debounces switch inputs (window up/down, mirror select, seat position) and reports them over LIN to the master body controller. The 6KB FLASH holds a small LIN slave stack and switch-logic firmware. Industrial temperature grade -40C to +85C covers passenger-compartment conditions. Source: NXP MC68HC908QL32 datasheet family.
推荐
推荐产品汇总
工程参考数据： MC908QL3CDWE ——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 | MC908QL4CDWE | MC908QL3CDW | MC908QL3MDWE | MC908QL4MDWE | MC908JK3ECDWE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-SOIC (DWE) | 16-SOIC (DWE) - same | 16-SOIC (DW) - same | 16-SOIC (DWE) - same | 16-SOIC (DWE) - same | 16-SOIC (DWE) - same |
| Core | HC08 | HC08 | HC08 | HC08 | HC08 | HC08 |
| Data Bus Width | 8 bit | 8 bit | 8 bit | 8 bit | 8 bit | 8 bit |
| Max Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Temperature Range | -40C to +85C | -40C to +85C | 0C to +70C | -40C to +85C | -40C to +85C | -40C to +85C |
| Serial Interface | SCI / LIN-compatible | SCI / LIN-compatible | SCI / LIN-compatible | SCI / LIN-compatible | SCI / LIN-compatible | SCI |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
关键差异点
- NXP Nitron LIN family integration （对比 MC908JK3ECDWE)
- 6KB program memory matches typical LIN slave code size （对比 MC908QL4CDWE)
- Industrial -40C to +85C temperature grade （对比 MC908QL3CDW)
设计说明
Estimated: at 5V VDD and 25 mA active HC08 current, the MC908QL3CDWE draws approximately 0.125 W. Add at least one 100 nF decoupling capacitor close to VDD (pin 1) and one 10 uF bulk cap on the PCB to ride through automotive cranking transients. Pair with an external 5V LDO such as NXP MC78LC50 if the upstream 12V battery feed is noisy. Source: NXP MC68HC908QL32 datasheet family.
Estimated: the 16-SOIC (DWE) package dissipates the typical 0.125 W well within its 100 C/W theta_JA, giving a junction temperature rise of about 12.5 C above ambient. At -40C to +85C ambient this leaves plenty of margin. Still, place the device away from heat sources such as TRIACs and transformer windings on the PCB.
Use a 4-layer PCB with a continuous ground plane under the MCU for the cleanest LIN bus signal integrity. Keep the LIN trace short (under 100 mm) and away from switching power nodes. Place a 22 pF ESD capacitor and the LIN transceiver (TJA1027) close to the LIN connector. The RST line should be pulled up to VDD with a 10 kohm resistor and decoupled with a 100 nF capacitor. Source citation: NXP MC68HC908QL32 datasheet family.
Do not assume all MC908QL3 suffix variants share the same temperature grade: 'C' = -40C to +85C, 'V' = -40C to +125C, no suffix typically 0C to +70C. The 'DWE' package code is the 16-SOIC wide-body; 'DW' is also 16-SOIC but a different body width and may not be a true drop-in footprint. Always confirm mechanical drawing before substituting.
The LIN bus requires a 1 kohm pull-up to VS (battery) on the master and 30 kohm on the slave per LIN 1.x/2.x spec; the MC908QL3CDWE SCI TXD/RXD lines connect to the transceiver, not directly to the bus. Use a TJA1027 or TJA1028 transceiver; never connect the MCU TXD/RXD directly to the LIN wire or damage will result. Source: LIN 2.x specification / NXP application note.
合规信息
RoHS / REACH / lead-free status not specified in the verified web data for this part; AEC-Q100 not applicable for the standard C-grade variant (only V-grade automotive suffix variants are typically AEC-Q100 qualified). Refer to the manufacturer datasheet for definitive compliance information.
