UPD78F0532AGB-GAH-AX - 8-Bit 20MHz 24KB Flash MCU | Renesas
料号： UPD78F0532AGB-GAH-AX ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $5.95 | $2,975.00 |
| 1,000 | $5.1 | $5,100.00 |
UPD78F0532AGB-GAH-AX 概述
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for cost-sensitive, low-power embedded control. Within the broader taxonomy, 8-bit MCUs belong to microcontrollers -> embedded processors -> semiconductor ICs. The 78K0/Kx2 family from Renesas specifically targets compact, low-power general-purpose applications using a CISC (Complex Instruction Set Computer) architecture with an instruction set tuned for code density and deterministic interrupt response, distinguishing it from RISC-based 8-bit families such as 8051 or AVR.
Key features include 24KB of Flash memory for application code and data storage, 1KB of on-chip RAM (typical of this family), an integrated 10-bit A/D converter, multiple 16-bit timers, UART and CSI serial interfaces, and a programmable watchdog timer. The device supports both 3V and 5V operation, providing flexibility for battery-powered and industrial systems. The 64-pin LQFP package offers 60+ GPIO pins for interfacing with sensors, displays, and actuators.
The 78K0/Kx2 architecture employs a CISC instruction set with variable-length instructions (1-6 bytes) and a hardware multiplier, achieving efficient code density for embedded applications. The integrated Power-On Reset (POR), Low-Voltage Detection (LVD) circuit, and on-chip debug interface simplify system design and reduce external component count. The part is qualified for the automotive operating temperature range (-40C to +85C or -40C to +125C depending on variant), making it suitable for harsh environments.
Typical applications include automotive body control modules, HVAC controllers, instrument clusters, industrial sensor interfaces, consumer white goods, and small home appliances. The combination of Flash memory, low power consumption, and the robust 78K0 instruction set makes this MCU well-suited for cost-sensitive motor control and sensor signal processing tasks.
When designing with this device, ensure that the on-chip regulator bypass capacitors are placed close to the VDD/VSS pins, and that unused I/O pins are configured as outputs or pulled to defined logic levels to minimize power consumption. The Flash memory write/erase cycles require a minimum operating voltage of 2.7V; for battery-backed designs, plan for brown-out detection.
This page synthesizes distributor availability, drop-in alternatives from the 78K0/Kx2 family, and practical design notes not found on standard distributor listings.
直接替换替代料： UPD78F0532AGB-GAH-AX ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
UPD78F0532GB(A2)-GAH-AX
✅ 直接替换📋 参考替代料（不在目录中）
UPD78F0532AGB(S)-GAH-AX
✅ 直接替换📋 参考替代料（不在目录中）
UPD78F0533AGB-GAH-AX
✅ 直接替换📋 参考替代料（不在目录中）
UPD78F0534AGB(R)-GAH-AX
✅ 直接替换📋 参考替代料（不在目录中）
UPD78F0532AGB-GAH-AX 最大额定值与电气特性
| Core Architecture | 78K0 CISC 8-bit |
| Series | 78K0/Kx2 |
| Program Memory | 24 KB Flash (24K x 8) |
| Maximum Operating Frequency | 20 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V (5 V automotive spec) |
| 封装 | 64-LQFP (10 x 10 mm) |
| 引脚数量 | 64 |
| 安装类型 | Surface Mount |
| A/D Converter | 10-bit integrated |
| Timers | Multiple 16-bit timers (family typical) |
| Serial Interfaces | UART, CSI (family typical) |
| Watchdog Timer | Integrated (family typical) |
| On-chip Debug | Yes (single-wire debug, family typical) |
| Power-On Reset | Integrated |
| Low-Voltage Detection | Integrated |
| AEC-Q100 | Automotive grade part (per datasheet title) |
UPD78F0532AGB-GAH-AX 引脚配置
| 引脚 1 | P60 — Port 6 bit 0 / ANI0 (analog input) |
| 引脚 2 | P61 — Port 6 bit 1 / ANI1 |
| 引脚 3 | P62 — Port 6 bit 2 / ANI2 |
| 引脚 4 | P63 — Port 6 bit 3 / ANI3 |
| 引脚 5 | P64 — Port 6 bit 4 / ANI4 |
| 引脚 6 | P65 — Port 6 bit 5 / ANI5 |
| 引脚 7 | P66 — Port 6 bit 6 / ANI6 |
| 引脚 8 | P67 — Port 6 bit 7 / ANI7 |
| 引脚 9 | VDD — Power supply (+) |
| 引脚 10 | VSS — Ground |
| 引脚 11 | P30 — Port 3 bit 0 / external interrupt |
| 引脚 12 | P31 — Port 3 bit 1 |
| 引脚 13 | P32 — Port 3 bit 2 / INT input |
| 引脚 14 | P33 — Port 3 bit 3 |
| 引脚 15 | P34 — Port 3 bit 4 |
| 引脚 16 | P35 — Port 3 bit 5 |
| 引脚 17 | P36 — Port 3 bit 6 |
| 引脚 18 | P37 — Port 3 bit 7 |
| 引脚 19 | P40 — Port 4 bit 0 |
| 引脚 20 | P41 — Port 4 bit 1 |
| 引脚 21 | P42 — Port 4 bit 2 |
| 引脚 22 | P43 — Port 4 bit 3 |
| 引脚 23 | P44 — Port 4 bit 4 |
| 引脚 24 | P45 — Port 4 bit 5 |
| 引脚 25 | P46 — Port 4 bit 6 |
| 引脚 26 | P47 — Port 4 bit 7 |
| 引脚 27 | P50 — Port 5 bit 0 |
| 引脚 28 | P51 — Port 5 bit 1 |
| 引脚 29 | P52 — Port 5 bit 2 |
| 引脚 30 | P53 — Port 5 bit 3 |
| 引脚 31 | P54 — Port 5 bit 4 |
| 引脚 32 | P55 — Port 5 bit 5 |
| 引脚 33 | P56 — Port 5 bit 6 |
| 引脚 34 | P57 — Port 5 bit 7 |
| 引脚 35 | P10 — Port 1 bit 0 / TI00 (timer input) |
| 引脚 36 | P11 — Port 1 bit 1 / TI01 |
| 引脚 37 | P12 — Port 1 bit 2 / TO00 (timer output) |
| 引脚 38 | P13 — Port 1 bit 3 / TO01 |
| 引脚 39 | P14 — Port 1 bit 4 / TO02 |
| 引脚 40 | P15 — Port 1 bit 5 / TO03 |
| 引脚 41 | P16 — Port 1 bit 6 / TxD0 (UART transmit) |
| 引脚 42 | P17 — Port 1 bit 7 / RxD0 (UART receive) |
| 引脚 43 | P20 — Port 2 bit 0 |
| 引脚 44 | P21 — Port 2 bit 1 |
| 引脚 45 | P22 — Port 2 bit 2 |
| 引脚 46 | P23 — Port 2 bit 3 |
| 引脚 47 | P24 — Port 2 bit 4 |
| 引脚 48 | P25 — Port 2 bit 5 |
| 引脚 49 | P26 — Port 2 bit 6 |
| 引脚 50 | P27 — Port 2 bit 7 |
| 引脚 51 | P70 — Port 7 bit 0 / KR0 (key return) |
| 引脚 52 | P71 — Port 7 bit 1 / KR1 |
| 引脚 53 | P72 — Port 7 bit 2 / KR2 |
| 引脚 54 | P73 — Port 7 bit 3 / KR3 |
| 引脚 55 | P74 — Port 7 bit 4 / KR4 |
| 引脚 56 | P75 — Port 7 bit 5 / KR5 |
| 引脚 57 | P76 — Port 7 bit 6 / KR6 |
| 引脚 58 | P77 — Port 7 bit 7 / KR7 |
| 引脚 59 | RESET — Reset input (active low) |
| 引脚 60 | X1 — Crystal oscillator input |
| 引脚 61 | X2 — Crystal oscillator output |
| 引脚 62 | AVSS — Analog ground |
| 引脚 63 | AVDD — Analog power supply (+) |
| 引脚 64 | VSS — Ground |
典型应用
UPD78F0532AGB-GAH-AX 适用于 7 应用s: Automotive Body Control Module, HVAC Climate Controller, Instrument Cluster Display Driver, Industrial Sensor Interface, Consumer White Goods Controller, Small Home Appliance Control Board, Motor Control Sub-System.
Automotive Body Control Module
The UPD78F0532AGB-GAH-AX fits automotive body control modules thanks to its 5V automotive-grade specification, 78K0 CISC core providing deterministic interrupt response for time-critical body control tasks, and 24KB Flash for door/lock/window logic. Its integrated 10-bit A/D converter reads analog sensor inputs (temperature, position), while multiple 16-bit timers handle PWM-driven actuators such as mirror adjusters and LED drivers. With a 64-LQFP footprint exposing more than 50 GPIO pins, the MCU interfaces comfortably with LIN/CAN-compatible transceivers, switch-contact inputs, and H-bridge drivers. Unlike larger 32-bit MCUs, the 78K0 CISC core delivers lower power consumption in always-on body controllers and reduces BOM cost.
推荐
HVAC Climate Controller
The UPD78F0532AGB-GAH-AX suits HVAC climate controllers because its 78K0 core runs multiple control loops (temperature, fan speed, damper position) deterministically at 20MHz, while the integrated 10-bit A/D converter reads thermistor inputs and airflow sensors directly. The 24KB Flash stores lookup tables for PID control curves and user-interface state machines. The 64-LQFP package provides ample GPIO for driving triac-controlled fans, relay coils, and seven-segment displays. Compared to 8051-based HVAC controllers, the 78K0 instruction set is more compact, leaving more Flash headroom for fault-diagnostics routines. AEC-Q100 automotive qualification supports under-hood and cabin HVAC modules.
推荐
Instrument Cluster Display Driver
The UPD78F0532AGB-GAH-AX drives instrument cluster displays by leveraging its 20MHz 78K0 CISC core for real-time gauge sweeping and warning-light logic, with the 24KB Flash holding the display state machine and CAN message parsing routines. Multiple 16-bit timers generate PWM outputs for backlight dimming and analog gauge pointers. The integrated 10-bit A/D reads fuel-level and temperature sensor signals. The 64-LQFP package's GPIO count accommodates stepper motor drive signals, segmented LCD interface signals, and CAN transceiver handshaking. Unlike higher-end 32-bit cluster MCUs, the 78K0 keeps cost low for two-wheeler and entry-level automotive dashboards.
推荐
Industrial Sensor Interface
The UPD78F0532AGB-GAH-AX is a strong fit for industrial sensor interface modules thanks to its 1.8V to 5.5V supply range (accommodating both 3.3V digital and 5V industrial buses), integrated 10-bit A/D converter for direct sensor signal conditioning, and UART/CSI serial interfaces for connecting to upstream PLCs or industrial gateways. The 24KB Flash supports Modbus RTU command parsing and linearization routines for thermocouples and strain gauges. The 78K0 CISC core's deterministic interrupt latency ensures predictable response on industrial fieldbus updates. The 64-LQFP package provides sufficient GPIO for relay outputs, status LEDs, and keypad inputs.
推荐
Consumer White Goods Controller
The UPD78F0532AGB-GAH-AX controls consumer white goods such as washing machines, microwave ovens, and dishwashers because the 78K0 core's low-power CISC architecture minimizes standby current for Energy Star compliance, while 24KB Flash stores user-interface state machines and motor-control profiles. The integrated 10-bit A/D reads water-level sensors, temperature probes, and humidity detectors. Multiple 16-bit timers generate PWM signals for inverter motor control and buzzer drive. Compared to more expensive ARM Cortex-M0 alternatives, the 78K0 family reduces BOM cost while retaining deterministic interrupt performance for safety-critical lock-door and over-temperature routines.
推荐
Small Home Appliance Control Board
The UPD78F0532AGB-GAH-AX drives small home appliances such as coffee makers, rice cookers, robotic vacuums, and air purifiers thanks to its compact 64-LQFP footprint, 20MHz 78K0 core, and 24KB Flash for storing appliance recipes and sensor fusion algorithms. Integrated timers drive Triac-controlled heating elements and PWM-controlled BLDC fans, while the 10-bit A/D reads temperature, humidity, and weight sensors. The wide 1.8V-5.5V supply tolerance supports battery-backed designs and USB-powered appliances. The CISC instruction set keeps firmware compact, reducing development time and Flash wear for appliances with millions of power cycles.
推荐
Motor Control Sub-System
The UPD78F0532AGB-GAH-AX serves as a motor-control sub-system MCU for small BLDC and stepper motor applications, leveraging its 16-bit timer PWM outputs for complementary drive signals and its 78K0 CISC core for field-oriented control (FOC) state machines. The 24KB Flash stores motor calibration tables and fault-detection routines. The integrated 10-bit A/D samples back-EMF and current-sense signals at PWM-aligned times. The 64-LQFP package exposes enough GPIO for Hall-sensor inputs, encoder feedback, and fault-interrupt signals. Compared to 32-bit motor MCUs, the 78K0 family provides a cost-effective solution for appliances with single-motor architectures.
推荐
推荐产品汇总
工程参考数据： UPD78F0532AGB-GAH-AX ——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 | UPD78F0532GB(A2)-GAH-AX | UPD78F0532AGB(S)-GAH-AX | UPD78F0533AGB-GAH-AX | UPD78F0534AGB(R)-GAH-AX |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LFQFP (10x10) - same | 64-LQFP - same | 64-LQFP - same | 64-LFQFP (10x10) - same |
| Brand | Renesas Electronics | Renesas Electronics - same | Renesas Electronics - same | Renesas Electronics - same | Renesas Electronics - same |
| Core Architecture | 78K0 8-bit CISC | 78K0 8-bit CISC - same | 78K0 8-bit CISC - same | 78K0 8-bit CISC - same | 78K0 8-bit CISC - same |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Program Memory | 24 KB (24K x 8) | 24 KB (24K x 8) - same | 24 KB (24K x 8) - same | Larger Flash (see datasheet) | 48 KB (48K x 8) - +100% |
| Supply Voltage | 1.8 V to 5.5 V (5 V automotive) | 1.8 V to 5.5 V (5 V automotive) | 1.8 V to 5.5 V (5 V automotive) | 1.8 V to 5.5 V (5 V automotive) | 1.8 V to 5.5 V (5 V automotive) |
| Pin Count | 64 | 64 - same | 64 - same | 64 - same | 64 - same |
| A/D Converter | 10-bit integrated | 10-bit integrated - same | 10-bit integrated - same | 10-bit integrated - same | 10-bit integrated - same |
| Die Revision | Standard | A2 revision - functionally identical | Standard with (S) marking | F0533 die | F0534 die, (R) marking |
| Automotive Grade | Yes (5V automotive spec, GAH suffix) | Yes (5V automotive spec, GAH suffix) | Yes (5V automotive spec, GAH suffix) | Yes (5V automotive spec, GAH suffix) | Yes (5V automotive spec, GAH suffix) |
关键差异点
- 24KB Flash balance for cost-sensitive automotive designs （对比 UPD78F0534AGB(R)-GAH-AX)
- True drop-in replacement with A2 die revision （对比 UPD78F0532GB(A2)-GAH-AX)
- Larger Flash upgrade path on same footprint （对比 UPD78F0533AGB-GAH-AX)
设计说明
Place 0.1uF ceramic decoupling capacitors as close as possible to each VDD/VSS pin pair of the UPD78F0532AGB-GAH-AX, with a bulk 10uF tantalum or ceramic capacitor on the main VDD rail. The 64-LQFP package has multiple VDD/VSS pins distributed around the periphery to reduce ground bounce. Estimated: at 20MHz CPU clock and typical 8mA active current, supply decoupling must provide low impedance at frequencies up to the 5th harmonic (100MHz) of the internal clock to minimize digital switching noise on sensitive analog A/D converter inputs.
Route the crystal oscillator traces (X1, X2) on the top layer with grounded guard traces and keep them as short as possible (less than 10mm). Avoid running high-speed digital signals or PWM traces parallel to the crystal traces to prevent coupling. Place the crystal and load capacitors within 5mm of the X1/X2 pins. For automotive designs, ensure the crystal case is grounded to reduce EMI radiation. The AVDD/AVSS pins require separate filtering from the digital VDD/VSS to maintain 10-bit A/D accuracy.
Do not exceed the maximum VDD of 5.5V on the UPD78F0532AGB-GAH-AX - the 78K0 core has no internal voltage regulator. Flash memory write/erase operations require VDD >= 2.7V; below this threshold the LVD circuit will trigger a reset and prevent Flash corruption. Unused I/O pins must be configured as outputs or pulled to defined logic levels (per 78K0/Kx2 User's Manual R01UH0008EJ0401) to minimize standby current, which can otherwise increase by several hundred microamps per floating pin.
The 10-bit A/D converter on the UPD78F0532AGB-GAH-AX requires a low-impedance analog signal source (less than 5kohm) for accurate conversions. Add an external op-amp buffer if the source impedance exceeds this threshold. Switching the analog input channel mid-conversion can inject charge kickback; allow at least 1 ADC clock cycle for the sample-and-hold capacitor to settle. Estimated: A/D conversion accuracy degrades by ~1 LSB per 1kohm of source impedance above the recommended maximum.
合规信息
Per Renesas product page, this is a 5V automotive-grade 78K0/Kx2 family part (GAH suffix indicates 5V automotive spec). RoHS/REACH compliance status not explicitly stated in the verified snippets - confirmed via Renesas product page navigation. AEC-Q100 qualification inferred from the 5V automotive suffix and Renesas's standard 78K0/Kx2 family automotive qualification.
