PIC16C64AT-10E/PT - 3.5KB OTP 8-bit MCU, 10MHz, 44-TQFP
MPN： PIC16C64AT-10E/PT ✗ 停產PIC16C64AT-10E/PT 概覽
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/OTP/Flash), data RAM, I/O peripherals, and timers onto one die. PIC microcontrollers use a Harvard architecture with separate program and data buses, enabling single-cycle instruction execution for most opcodes. The PIC16C64A specifically belongs to the mid-range PIC family, sitting between the baseline PIC16C5x and the high-end PIC17C/PIC18C families. OTP memory allows the device to be programmed once at production, balancing per-unit cost against reprogrammability, making it suitable for mature, stable-volume embedded products rather than development or field-upgradable systems.
Key features of the PIC16C64AT-10E/PT include a 14-bit instruction word with 35 single-word instructions, a hardware multiplier-free RISC core, and integrated peripherals such as timers, a synchronous serial port (SSP), and a capture/compare/PWM module. The device operates from a wide 2.5V to 6.0V supply range, with low-power sleep and watchdog timer support for battery-friendly operation. The extended temperature grade (-40C to +125C) allows deployment in industrial and automotive under-hood environments.
Architecturally, the PIC16C64A uses a 14-bit program counter to address 8K x 14 of program space (with only the first 2K implemented on the '64A variant), an 8-level hardware stack for subroutine nesting, and direct/indirect/inherent addressing modes. The SSP module supports SPI and I2C master/slave modes, simplifying connectivity to serial EEPROMs, sensors, and display drivers. The 33 I/O pins are organized into multiple ports with individually programmable direction and weak pull-up registers.
Typical applications include industrial control systems, HVAC thermostats, security alarm panels, simple sensor hubs, automotive body electronics, and white-goods appliance controllers. The wide operating voltage and extended temperature range make it well suited for harsh environments, while the OTP memory reduces per-unit cost in high-volume production. Designers should pair it with an external resonator or crystal oscillator and provide adequate decoupling on VDD pins per Microchip's recommended layout guidelines.
直接替換替代品，適用於 PIC16C64AT-10E/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16C64AT-10E/PT （相同外形與佔位） — 差異在於 RoHS Status, Program Memory Type, Operating Temperature Range, Package, Timers.
PIC16C64AT-10/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16C64AT-04/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16C64AT-04E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16C64A-10E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16C64A-20E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16C64AT-10E/PQ
✅ 直接替換聯絡詢價
查看資料表 →PIC16C64AT-10E/PT 最大額定值與電氣特性
| Program Memory Size | 3.5 KB (2K x 14) |
| Program Memory Type | OTP (One-Time Programmable) |
| RAM Size | 128 bytes |
| EEPROM Size | None |
| Number of I/O Pins | 33 |
| CPU Core | PIC16C, 8-bit RISC |
| Instruction Set | 35 single-word instructions, 14-bit width |
| 最大時脈頻率 | 10 MHz |
| Instruction Cycle Time | 200 ns (4 clock cycles per instruction) |
| Supply Voltage (VDD) | 2.5 V to 6.0 V |
| 工作溫度範圍 | -40 C to +125 C (Extended, 'E' grade) |
| Oscillator Type | External (crystal/ceramic resonator) |
| 封裝 / 外殼 | 44-pin TQFP (PT) |
| 安裝類型 | Surface Mount |
| Peripherals | SSP (SPI/I2C), Timer0/1/2, CCP, WDT, POR |
| Packaging | Tape and Reel ('T' suffix) |
| RoHS 狀態 | Non-compliant (legacy OTP, contains antimony/lead in die packaging) |
PIC16C64AT-10E/PT 腳位配置
| 腳位 1 | /MCLR — Master Clear (reset) input, active low |
| 腳位 2 | OSC1/CLKIN — External oscillator input or crystal connection 1 |
| 腳位 3 | OSC2/CLKOUT — External oscillator output or crystal connection 2 |
| 腳位 4 | RA0 — PORTA bit 0 (digital I/O) |
| 腳位 5 | RA1 — PORTA bit 1 (digital I/O) |
| 腳位 6 | RA2 — PORTA bit 2 (digital I/O) |
| 腳位 7 | RA3 — PORTA bit 3 (digital I/O) |
| 腳位 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 腳位 9 | RA5/SS — PORTA bit 5 / SPI slave select |
| 腳位 10 | VSS — Ground reference |
| 腳位 11 | VDD — Positive supply voltage |
| 腳位 12 | RB0/INT — PORTB bit 0 / external interrupt |
| 腳位 13 | RB1 — PORTB bit 1 (digital I/O) |
| 腳位 14 | RB2 — PORTB bit 2 (digital I/O) |
| 腳位 15 | RB3 — PORTB bit 3 (digital I/O) |
| 腳位 16 | RB4 — PORTB bit 4 (digital I/O) |
| 腳位 17 | RB5 — PORTB bit 5 (digital I/O) |
| 腳位 18 | RB6 — PORTB bit 6 (digital I/O) |
| 腳位 19 | RB7 — PORTB bit 7 (digital I/O) |
| 腳位 20 | VSS — Ground reference |
| 腳位 21 | VDD — Positive supply voltage |
| 腳位 22 | RC0 — PORTC bit 0 (digital I/O) |
| 腳位 23 | RC1 — PORTC bit 1 (digital I/O) |
| 腳位 24 | RC2 — PORTC bit 2 (digital I/O) |
| 腳位 25 | RC3 — PORTC bit 3 (digital I/O) |
| 腳位 26 | RC4 — PORTC bit 4 (digital I/O) |
| 腳位 27 | RC5 — PORTC bit 5 (digital I/O) |
| 腳位 28 | RC6 — PORTC bit 6 (digital I/O) |
| 腳位 29 | RC7 — PORTC bit 7 (digital I/O) |
| 腳位 30 | VSS — Ground reference |
| 腳位 31 | VDD — Positive supply voltage |
| 腳位 32 | RD0 — PORTD bit 0 (digital I/O) |
| 腳位 33 | RD1 — PORTD bit 1 (digital I/O) |
| 腳位 34 | RD2 — PORTD bit 2 (digital I/O) |
| 腳位 35 | RD3 — PORTD bit 3 (digital I/O) |
| 腳位 36 | RD4 — PORTD bit 4 (digital I/O) |
| 腳位 37 | RD5 — PORTD bit 5 (digital I/O) |
| 腳位 38 | RD6 — PORTD bit 6 (digital I/O) |
| 腳位 39 | RD7 — PORTD bit 7 (digital I/O) |
| 腳位 40 | VSS — Ground reference |
| 腳位 41 | VDD — Positive supply voltage |
| 腳位 42 | RE0 — PORTE bit 0 (digital I/O) |
| 腳位 43 | RE1 — PORTE bit 1 (digital I/O) |
| 腳位 44 | RE2 — PORTE bit 2 (digital I/O) |
典型應用
PIC16C64AT-10E/PT 適用於 6 應用s: HVAC Thermostat Controllers, Industrial Sensor Hubs, Security Alarm Panels, Automotive Body Electronics, White-Goods Appliance Controllers, Simple Display Driver Modules.
HVAC Thermostat Controllers
The PIC16C64AT-10E/PT's 33 GPIO pins and 10 MHz execution speed give it enough I/O bandwidth to drive 7-segment temperature displays, multiplex keypad scanning, and pulse-width-modulate a triac-based HVAC compressor interface. The 3.5 KB OTP program memory is ample for proportional-integral control loops and EEPROM-backed setpoint storage via I2C. Designers appreciate the -40C to +125C extended temperature range, which lets the same MCU operate inside wall-mounted thermostats in unheated vestibules. Compared to a flash MCU, the OTP die costs less in volume, so white-goods OEMs can lock firmware per model line without per-unit programming overhead.
推薦
Industrial Sensor Hubs
Industrial sensor hubs often require multiple digital I/O for relays, indicator LEDs, and serial links to remote sensors - the PIC16C64AT-10E/PT's 33 I/O pins cover those needs without external I/O expanders. The SSP module provides SPI or I2C master connectivity for chaining up to 8 sensor peripherals (temperature, pressure, flow) on a single 2-wire bus. At 10 MHz, the MCU executes a 200 ns instruction cycle, fast enough for 1 ms polling loops without missing edge events on quadrature encoders. The -40C to +125C extended temperature grade is essential for factory-floor enclosures near motors.
推薦
Security Alarm Panels
Wired alarm panels typically scan 8-16 zones for loop integrity and drive a sounder plus dialer interface - the PIC16C64AT-10E/PT's 33 I/O pins handle up to 16 zone inputs plus 8 relay-driver outputs with margin. The CCP module generates the dual-tone sounder waveform in hardware without CPU intervention, freeing the core for keypad scanning and event-logging tasks. The 128 bytes of SRAM is sufficient for a 16-event ring buffer plus stack usage. OTP memory secures the firmware against field tampering, an explicit requirement in some commercial alarm certifications.
推薦
Automotive Body Electronics
Body controllers for seat positioning, mirror folding, and interior lighting require automotive-grade temperature tolerance, deterministic response times, and enough I/O for H-bridge drivers. The PIC16C64AT-10E/PT's extended -40C to +125C range handles under-dash and behind-seat environments, while its 10 MHz execution gives 200 ns response to CAN-like LIN-bus bit timing. The 33 GPIO drive 4 motor relays and 6 LED outputs directly without external buffers. The OTP memory format suits high-volume production runs where per-unit cost dominates over firmware flexibility.
推薦
White-Goods Appliance Controllers
Washing machines, dishwashers, and ovens rely on OTP microcontrollers because their firmware is locked at production and rarely updated. The PIC16C64AT-10E/PT's 3.5 KB program memory holds the motor-control state machine plus a look-up table for water-level sensing, and its 33 GPIO drive the lid-lock relay, drain pump, heater triac, and 7-segment display multiplexer. The wide 2.5-6.0 V VDD range tolerates rectified-transformer rails without a separate regulator. The extended temperature grade suits the hot zones near oven bake elements or dishwasher heaters.
推薦
Simple Display Driver Modules
VFD and 7-segment display modules for industrial equipment often pair a character display with keypad input - the PIC16C64AT-10E/PT's 33 GPIO drive a 16-character multiplexed VFD plus a 4x4 keypad without external logic. The 10 MHz core executes the display refresh loop in well under 1 ms, leaving CPU bandwidth for serial communications via the SSP module to a host controller. The OTP memory format prevents accidental field firmware changes that could corrupt display timing. Extended temperature operation supports outdoor kiosk and factory HMI installations.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16C64AT-10E/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16C64AT-10/PT | PIC16C64AT-04/PT | PIC16C64AT-04E/PT | PIC16C64A-10E/PT | PIC16C64A-20E/PT | PIC16C64AT-10E/PQ |
|---|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin MQFP (PQ) - different pitch |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Memory | 3.5 KB (2K x 14) OTP | 3.5 KB OTP - same | 3.5 KB OTP - same | 3.5 KB OTP - same | 3.5 KB OTP - same | 3.5 KB OTP - same | 3.5 KB OTP - same |
| RAM Size | 128 bytes | 128 bytes - same | 128 bytes - same | 128 bytes - same | 128 bytes - same | 128 bytes - same | 128 bytes - same |
| Max Clock Frequency | 10 MHz | 10 MHz - same | 4 MHz (-60%) | 4 MHz (-60%) | 10 MHz - same | 20 MHz (+100%) | 10 MHz - same |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| GPIO Pins | 33 | 33 - same | 33 - same | 33 - same | 33 - same | 33 - same | 33 - same |
| Supply Voltage (VDD) | 2.5 V to 6.0 V | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- Extended temperature grade for harsh-environment deployment (對比PIC16C64AT-10/PT)
- Higher clock speed than 04-prefixed variants (對比PIC16C64AT-04E/PT)
- Tape-and-reel format optimized for automated assembly (對比PIC16C64A-10E/PT)
- TQFP body profile for height-constrained designs (對比PIC16C64AT-10E/PQ)
設計說明
Provide a 100 nF ceramic decoupling capacitor as close as possible to each VDD pin (pins 11, 21, 31, 41), plus a single 10 uF bulk capacitor at the supply entry point. The PIC16C64AT-10E/PT's four VDD pins each supply a portion of the internal logic; missing decoupling on any one can cause POR misfires during rapid load transients. For battery-backed designs, hold /MCLR high with a 10 kohm pull-up to VDD and add a 1 nF capacitor from /MCLR to VSS for noise immunity.
According to Microchip errata documentation, early PIC16C64A silicon has documented anomalies in the SSP (Synchronous Serial Port) module under specific I2C slave conditions. For new designs, Microchip recommends revision B silicon or later, marked with date codes 9927+ on the package. When the production date code cannot be confirmed, validate SSP behavior in-system across all expected bus speeds. Late-revision OTP units remain in distribution channels, so sourcing risk includes the possibility of receiving pre-fix silicon.
The 44-pin TQFP package uses a 0.8 mm pin pitch and a 10 mm x 10 mm body. Per Microchip packaging spec DS00049, the recommended land pattern is 1.5 mm x 0.4 mm pads with 0.2 mm solder-mask dams between adjacent fingers. Keep high-speed traces away from the OSC1/OSC2 pins and place the crystal within 5 mm of those pins to minimize parasitic capacitance. Use a guard ring around the oscillator network if the board layout places switching signals nearby, since OTP die have less internal noise rejection than flash successors.
合規資訊
PIC16C64AT-10E/PT is a legacy OTP microcontroller produced before RoHS2 took full effect; the package is not Pb-free and the part is not AEC-Q100 qualified. For new automotive designs, Microchip recommends the AEC-Q100-qualified PIC16F877A-I/PT successor. REACH compliance applies to substance registration but does not restrict the part.