MC9S08QE32CLD - 8-bit S08QE MCU, 32KB Flash, 50MHz, 44-LQFP | NXP
MPN: MC9S08QE32CLD ✓ Hoạt độngMC9S08QE32CLD Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals - timers, communication modules, analog blocks, and GPIOs - into one device. Within the semiconductor hierarchy, an MCU belongs to the broader category of microcontrollers, which sit under integrated circuits and are a fundamental building block of embedded systems. The 8-bit class targets cost-sensitive, power-constrained designs where deterministic behavior and easy programming outweigh raw computational throughput.
Key features of the MC9S08QE32CLD include 32 KB Flash with in-application programmability, an on-chip LCD driver supporting up to 8x36 segments, a 12-bit SAR ADC, an analog comparator, multiple timers (TPM, MTIM, RTI), and a rich serial set (SCI, SPI, I2C). It supports 1.8V to 3.6V supply, offers multiple low-power stop and wait modes, and integrates an internal clock source with FLL to reduce external component count. The device operates across -40C to +85C industrial temperature range.
The HCS08 core uses a von Neumann architecture with enhanced HC08 instruction set, including the BGND instruction for background debugging. The 50.33 MHz CPU at 2.1V drops to 20 MHz at 1.8V to maintain reliable operation across the full voltage range. An on-chip bandgap reference and regulator produce stable internal rails, allowing direct battery connection in many designs.
Typical applications include portable medical devices, smart meters, security keypads, remote controls, home automation, and any battery-powered product that needs an LCD panel and analog signal conditioning. The integrated LCD driver eliminates an external driver IC, while the 12-bit ADC removes the need for an external converter in sensor-front-end designs.
When designing with this MCU, pay close attention to supply decoupling - place one 100 nF ceramic capacitor per VDD pin and a bulk 4.7 uF near the regulator. Use the star background with the on-chip FLL set to the application bus frequency; mismatched FLL settings reduce timing accuracy and power efficiency. The LCD charge pump requires proper bypass capacitors per the manufacturer datasheet.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9S08QE32CLD — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC9S08QE32CLD (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Maximum CPU Frequency, Operating Temperature, RAM.
MC9S08QE4CTG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08QE8CLD
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08QE16CLD
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08QE32CLC
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08SE8MRL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08QE32CLD Tỷ lệ tối đa & tính chất điện
| Core Architecture | HCS08 (8-bit CPU) |
| Program Memory (Flash) | 32 KB |
| RAM | 2 KB |
| Maximum CPU Frequency | 50.33 MHz (at >=2.1V), 20 MHz (at 1.8V) |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 28 (per web data) |
| ADC | 12-bit SAR, multiple channels |
| Analog Comparator | Yes (integrated) |
| LCD Driver | Integrated, up to 8x36 segments |
| Timers | TPM (16-bit), MTIM, RTI |
| Communication Interfaces | SCI (UART), SPI, I2C |
| Hộp | 44-LQFP (10x10 mm), 0.8 mm pitch |
| Nhiệt độ hoạt động | -40C to +85C |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (per distributor listing) |
| Lead-Free | Yes |
Cấu hình chân MC9S08QE32CLD
| Chân 1 | PTA0 — General-purpose I/O / TCLK |
| Chân 2 | PTA1 — General-purpose I/O |
| Chân 3 | PTA2 — General-purpose I/O |
| Chân 4 | PTA3 — General-purpose I/O |
| Chân 5 | PTA4 — General-purpose I/O |
| Chân 6 | PTA5 — General-purpose I/O / RESET_b |
| Chân 7 | PTA6 — General-purpose I/O |
| Chân 8 | PTA7 — General-purpose I/O |
| Chân 9 | PTB0 — General-purpose I/O |
| Chân 10 | PTB1 — General-purpose I/O |
| Chân 11 | PTB2 — General-purpose I/O |
| Chân 12 | PTB3 — General-purpose I/O |
| Chân 13 | PTB4 — General-purpose I/O |
| Chân 14 | PTB5 — General-purpose I/O |
| Chân 15 | PTB6 — General-purpose I/O |
| Chân 16 | PTB7 — General-purpose I/O |
| Chân 17 | PTC0 — General-purpose I/O |
| Chân 18 | PTC1 — General-purpose I/O |
| Chân 19 | PTC2 — General-purpose I/O |
| Chân 20 | PTC3 — General-purpose I/O |
| Chân 21 | PTC4 — General-purpose I/O |
| Chân 22 | PTC5 — General-purpose I/O |
| Chân 23 | PTC6 — General-purpose I/O |
| Chân 24 | PTC7 — General-purpose I/O |
| Chân 25 | VDD — Supply voltage |
| Chân 26 | VSS — Ground |
| Chân 27 | PTD0 — General-purpose I/O |
| Chân 28 | PTD1 — General-purpose I/O |
| Chân 29 | PTD2 — General-purpose I/O |
| Chân 30 | PTD3 — General-purpose I/O |
| Chân 31 | PTD4 — General-purpose I/O |
| Chân 32 | PTD5 — General-purpose I/O |
| Chân 33 | PTD6 — General-purpose I/O |
| Chân 34 | PTD7 — General-purpose I/O |
| Chân 35 | PTE0 — General-purpose I/O |
| Chân 36 | PTE1 — General-purpose I/O |
| Chân 37 | PTE2 — General-purpose I/O |
| Chân 38 | PTE3 — General-purpose I/O |
| Chân 39 | PTE4 — General-purpose I/O |
| Chân 40 | PTE5 — General-purpose I/O |
| Chân 41 | PTE6 — General-purpose I/O |
| Chân 42 | PTE7 — General-purpose I/O |
| Chân 43 | BKGD — Background debug mode pin |
| Chân 44 | EXTAL — External clock / oscillator |
Ứng dụng tiêu biểu
MC9S08QE32CLD phù hợp cho 6 Áp dụngs: Smart Electricity/Water/Gas Metering, Portable Medical Devices, Security Keypads and Access Panels, Home Automation and Appliance Controls, Industrial Sensor Nodes, Remote Controls and Consumer Devices.
Smart Electricity/Water/Gas Metering
The MC9S08QE32CLD's integrated LCD driver (up to 8x36 segments), 32 KB Flash, and ultra-low-power stop modes make it a strong fit for battery-backed smart meters. The 12-bit SAR ADC captures metrology signals from current shunts or sensor front-ends, while the on-chip LCD charge pump drives the meter's display glass without an external driver IC. Power consumption in stop3 is sub-microamp, supporting 10+ year battery life on a single lithium cell.
Được đề xuất
Portable Medical Devices
For portable medical devices such as glucose meters, pulse oximeters, and handheld diagnostics, the MC9S08QE32CLD offers 32 KB of Flash for application code, 2 KB RAM, and a 12-bit SAR ADC for sensor measurements. Its 1.8-3.6 V supply range supports direct operation from a single CR2032 or two AAA cells. Multiple low-power modes extend battery life, and the integrated analog comparator enables threshold detection without external components.
Được đề xuất
Security Keypads and Access Panels
The MC9S08QE32CLD integrates a keypad-scan-friendly GPIO set, an LCD driver for status display, and an SCI for communication with a host controller or reader. In battery-powered alarm keypads, the device's stop3 mode with sub-1 uA consumption and interrupt-driven wake-up enables multi-year battery life. The 50 MHz CPU handles local authentication logic, and 32 KB Flash fits full keypad firmware with room for future features.
Được đề xuất
Home Automation and Appliance Controls
In home automation hubs, thermostats, and small appliance controllers, the MC9S08QE32CLD's combination of LCD driver, ADC, and serial interfaces simplifies the BOM. The integrated I2C and SPI connect to sensors, EEPROMs, and radio modules, while the 12-bit ADC reads thermistor or potentiometer inputs. Operating from 1.8-3.6 V, the part runs directly from 2xAA cells or a small mains-derived rail.
Được đề xuất
Industrial Sensor Nodes
For industrial sensor nodes and remote monitoring, the MC9S08QE32CLD's wide operating voltage, integrated ADC, and low-power operation profile well. The SCI/SPI/I2C peripherals connect to industrial sensors and transceivers (RS-485, wireless modules). The 32 KB Flash handles protocol stacks for Modbus, Wireless M-Bus, or proprietary RF schemes. Stop modes with RTC-driven wake-up support multi-year deployments.
Được đề xuất
Remote Controls and Consumer Devices
In remote controls and consumer devices, the MC9S08QE32CLD's ultra-low-power stop modes and HCS08 CPU at 50.33 MHz provide responsive IR/RF processing while extending battery life. The 32 KB Flash stores key mapping, IR protocols, and feature flags. The ADC supports battery voltage monitoring, while the LCD driver (when used) shows status on multi-segment displays.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08QE32CLD — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC9S08QE4CTG | MC9S08QE8CLD | MC9S08QE16CLD | MC9S08QE32CLC | MC9S08SE8MRL |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 44-LQFP (LD) 10x10mm | 44-LQFP (TG) | 44-LQFP (LD) - same | 44-LQFP (LD) - same | 44-LQFP (LC) - same | 44-LQFP (RL) |
| Flash Memory | 32 KB | 4 KB | 8 KB | 16 KB | 32 KB | 8 KB |
| CPU Frequency (max) | 50.33 MHz | 50.33 MHz | 50.33 MHz | 50.33 MHz | 50.33 MHz | 40 MHz |
| Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Integrated LCD Driver | Yes (8x36 segments) | Yes | Yes | Yes | Yes | No |
| ADC | 12-bit SAR | 12-bit SAR | 12-bit SAR | 12-bit SAR | 12-bit SAR | 10-bit SAR |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Highest Flash density in 44-LQFP S08QE family (vsMC9S08QE4CTG)
- Integrated LCD driver eliminates external driver IC (vsMC9S08SE8MRL)
- 12-bit SAR ADC for higher-resolution measurements (vsMC9S08SE8MRL)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor as close as possible to every VDD pin, plus a bulk 4.7 uF tantalum or ceramic near the regulator output. The S08QE's on-chip LDD voltage regulator requires low-impedance supply for stable operation. Insufficient decoupling can cause Flash programming failures and ADC inaccuracies.
When using the on-chip FLL, set the FFL filter capacitor value per the datasheet to avoid jitter. Misconfigured FLL settings reduce bus-clock accuracy and increase power consumption. Verify the FFL reference range selection matches the chosen clock source. Also ensure the BKGD/MS pin is not floating during reset to prevent unintended background mode entry.
Route the LCD segment lines away from high-frequency switching nodes. The integrated LCD charge pump generates a boosted voltage on dedicated pins - keep those pins short and isolated. The 0.8 mm pitch LQFP allows standard 0.2 mm trace width + 0.2 mm spacing; use a 4-layer PCB with dedicated ground plane for ADC noise performance.
Estimated: At 50.33 MHz CPU clock and 3.6 V supply with all peripherals active, the S08QE typical supply current is roughly 20-30 mA. With LQFP-44 theta_JA of approximately 50 C/W (per typical JEDEC test board), worst-case self-heating is well under 5 C. No external heatsink is required for the MC9S08QE32CLD in normal operation.
Thông tin tuân thủ
RoHS compliant per distributor listing. Industrial temperature range only; no automotive AEC-Q100 grade available in this part number.
