PIC16CE625-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
MPN: PIC16CE625-04I/SS ✓ NakahandaPIC16CE625-04I/SS Ulas
The PIC16CE62X family belongs to the 8-bit microcontroller (MCU) category, which sits hierarchically under: 8-bit MCU -> RISC microcontroller -> embedded controller -> semiconductor IC. The PIC architecture uses a Harvard design with separate program and data buses, only 35 single-word instructions, and a 14-bit wide instruction word. Most instructions execute in a single 200ns cycle, making the core well-suited for deterministic embedded control loops that demand predictable timing.
Key specifications include a maximum clock input of 20 MHz, two 8-bit timers (Timer0, Timer2) plus one 16-bit timer (Timer1), a 10-bit resolution Analog-to-Digital Converter (ADC) channel block on related variants, an internal watchdog timer, and 13 digital I/O pins with programmable direction registers. The 'CE' suffix denotes on-chip EEPROM data memory for non-volatile parameter storage. Brown-out reset, power-on reset, and in-circuit serial programming (ICSP) are integrated.
Architecturally, the PIC16CE625-04I/SS is built on Microchip's standard enhanced PIC16C core with 14-bit instruction width, an 8-level hardware stack, and interrupt-driven peripherals. The '04' speed suffix indicates 4MHz operation, and the 'I' suffix denotes the industrial temperature grade (-40C to +85C). The part is offered in the 5.30mm body 20-SSOP package with gull-wing leads for surface-mount assembly.
Typical applications include appliance control, sensor signal conditioning, low-cost embedded control boards, intelligent sensor nodes, small consumer devices, and replacement of OTP-based PIC16C designs. The integrated EEPROM makes it a strong fit for designs that must store calibration constants, user settings, or run-time counters without external memory.
A key design consideration: because this part is OTP (One-Time-Programmable), firmware must be fully verified before programming - there is no field re-programmability. For prototyping, evaluate PIC16F62X flash-based siblings on the same pinout before committing to production.
This page synthesizes distributor pricing, pin-compatible same-package alternatives, and practical design guidance not found in the standalone manufacturer datasheet, supporting faster sourcing and engineering decisions.
Mga alternatibo na pwedeng ilagay na PIC16CE625-04I/SS — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC16CE625-04I/SS (parehas na form factor at footprint) — pagkakaiba sa Package, Instruction Cycle Time, Operating Temperature, Timers, Core Architecture.
PIC16CE625-04/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16CE625T-04I/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16CE624-04/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16CE624T-04E/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16CE623-04I/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16CE623T-04I/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16F628-04I/SS
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC16CE625-04I/SS Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | PIC16C 8-bit RISC (14-bit instruction) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| Data EEPROM | Integrated (CE family feature) |
| Maksimum na Taktiko ng Oras | 4 MHz (-04 speed grade) |
| Instruction Cycle Time | 200 ns |
| Volte ng Pagbibigay | 3.0 V to 5.5 V |
| I/O Pins | 13 |
| Timers | 1 x 8-bit, 1 x 8-bit, 1 x 16-bit (Timer0, Timer1, Timer2) |
| Watchdog Timer | Yes (independent RC oscillator) |
| Brown-out Reset | Yes |
| In-Circuit Serial Programming | Yes (ICSP) |
| Packhaging | 20-SSOP (5.30 mm body, 0.65 mm pitch) |
| Temperature na Operasyon | -40 C to +85 C (Industrial 'I' grade) |
Pin Configuration ng PIC16CE625-04I/SS
| Pin 1 | MCLR/VPP — Master clear reset input / programming voltage input |
| Pin 2 | RA0 — PORTA bit 0 (digital I/O) |
| Pin 3 | RA1 — PORTA bit 1 (digital I/O) |
| Pin 4 | RA2 — PORTA bit 2 (digital I/O) |
| Pin 5 | RA3 — PORTA bit 3 (digital I/O) |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin 10 | RC0 — PORTC bit 0 (digital I/O) |
| Pin 11 | RC1 — PORTC bit 1 (digital I/O) |
| Pin 12 | RC2 — PORTC bit 2 (digital I/O) |
| Pin 13 | RC3 — PORTC bit 3 (digital I/O) |
| Pin 14 | RC4 — PORTC bit 4 (digital I/O) |
| Pin 15 | RC5 — PORTC bit 5 (digital I/O) |
| Pin 16 | RC6 — PORTC bit 6 (digital I/O) |
| Pin 17 | RC7 — PORTC bit 7 (digital I/O) |
| Pin 18 | RB7 — PORTB bit 7 (digital I/O) |
| Pin 19 | VDD — Positive supply voltage (3.0V to 5.5V) |
| Pin 20 | VSS — Ground reference |
Tipikal na mga Gamit
PIC16CE625-04I/SS ay nararapat para sa 6 aplikasyons: Appliance Control Boards, Sensor Signal Conditioning, Low-Cost Embedded Control Boards, Intelligent Sensor Nodes, Small Consumer Devices, Industrial Replacement of Older PIC16C Designs.
Appliance Control Boards
The PIC16CE625-04I/SS fits appliance control boards that need a low-cost 8-bit MCU with non-volatile parameter storage and deterministic real-time response. Its 3.5KB OTP holds washing-machine, dishwasher, or microwave state-machine firmware; the integrated EEPROM stores user settings, calibration data, and fault logs that survive power loss. The 4MHz/200ns instruction cycle keeps loop times predictable for relay and triac control tasks, and 13 I/O pins are sufficient to drive keypads, LEDs, and a small 7-segment display.
Inirekomenda
Sensor Signal Conditioning
The PIC16CE625-04I/SS works well as a low-power sensor signal conditioning front end for industrial sensors, where the integrated ADC and PWM peripherals digitize and excite resistive bridges or thermistor networks. The 3.0V to 5.5V supply range matches 3.3V and 5V transducer rails, and the brown-out reset prevents corrupted sensor readings during supply sag. EEPROM stores factory calibration constants so each unit can ship pre-trimmed without external NVM components, and the watchdog timer ensures the MCU recovers from noise-induced lockups on long cable runs.
Inirekomenda
Low-Cost Embedded Control Boards
The PIC16CE625-04I/SS targets entry-level embedded control boards where BOM cost dominates and the OTP memory model is acceptable. With only 35 single-word instructions, the PIC16C RISC core is among the easiest 8-bit architectures to learn, and ICSP allows programming after PCB assembly - useful for small contract-manufacturing runs. The SSOP-20 footprint fits 0805-component-class board densities, and 13 I/O pins drive LED indicators, push-buttons, buzzer PWM, and a UART for factory test.
Inirekomenda
Intelligent Sensor Nodes
The PIC16CE625-04I/SS supports intelligent sensor nodes that aggregate and pre-process analog signals before reporting over a slow UART or LIN bus. The 128B RAM is enough for circular buffers and one-cycle low-pass filtering at modest sample rates, while EEPROM retains node ID and calibration. Industrial -40C to +85C operation enables outdoor and factory-floor deployment, and brown-out reset protects the node when battery-supplied rails sag during transmit bursts.
Inirekomenda
Small Consumer Devices
The PIC16CE625-04I/SS serves small consumer devices such as remote controls, toys, and personal-care appliances that need a sub-$1 MCU with rock-solid real-time response. The OTP memory locks the firmware at programming, preventing end-user tampering or accidental field updates - desirable for safety and brand-protection use cases. With a 4MHz clock and a single-cycle instruction pipeline, the core is fast enough for IR carrier generation, simple audio tones, and LED chase patterns without DMA or interrupts contention.
Inirekomenda
Industrial Replacement of Older PIC16C Designs
The PIC16CE625-04I/SS is purpose-built for industrial replacement of older PIC16C622-16 and PIC16C5x designs that share the same PIC16C core and instruction set. The 'CE' EEPROM data memory supersedes external 24LCxx EEPROMs, freeing I/O pins and reducing BOM count. Industrial -40C to +85C operation and brown-out reset meet factory-floor reliability expectations, and the SSOP-20 footprint lets it drop onto legacy PIC16C622-04/SS boards with no PCB rework.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC16CE625-04I/SS — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC16CE625-04/SS | PIC16CE624-04/SS | PIC16CE623-04I/SS | PIC16F628-04I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 2 KB OTP | 2 KB OTP | 3.5 KB Flash |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 224 bytes |
| Data EEPROM | Integrated | Integrated | Integrated | Integrated | 128 bytes Flash-emulated |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz (4 MHz at this speed grade) |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Memory Type | OTP | OTP | OTP | OTP | Flash (re-programmable) |
Pangunahing mga Pagkakaiba
- On-chip EEPROM data memory eliminates external NVM IC (kumpara saPIC16CE624-04/SS)
- Industrial temperature range for factory-floor deployment (kumpara saPIC16CE625-04/SS)
- Flash-based migration path via same-package PIC16F628 (kumpara saPIC16F628-04I/SS)
- Higher program memory density within the PIC16CE62X family (kumpara saPIC16CE623-04I/SS)
Talaan ng Disenyo
The PIC16CE625-04I/SS uses OTP (One-Time-Programmable) program memory, so firmware bugs cannot be patched in the field. Verify all firmware behavior on a flash-based sibling (PIC16F628-I/SS) or in MPLAB X simulation before committing to OTP. Allocate margin in code size: 3.5KB fills quickly when interrupt service routines and lookup tables grow, and there is no way to compress code post-programming.
Power decoupling for the PIC16CE625-04I/SS requires a 100nF ceramic capacitor placed within 5mm of the VDD pin (pin 19) and a 10uF bulk capacitor on the same rail. A separate analog AVdd filter is unnecessary on this device (no analog supply pin), but the MCLR/VPP pin (pin 1) must be tied to VDD through a 10kohm resistor and a 100nF capacitor to VSS for proper reset operation - omitting these causes intermittent reset failures during supply transients.
Place the 4MHz crystal or resonator as close as possible to OSC1 (pin 8) and OSC2 (pin 9) and route the OSC traces over a continuous ground pour. Keep high-frequency switching traces (relays, triacs, or PWM loads) at least 5mm away from the oscillator traces to prevent clock jitter. The ICSP clock and data lines share RB6 and RB7 (pins 17-18 in this pinout convention), so keep those traces accessible from the programming connector without crossing noisy signals.
Do not exceed 5.5V on VDD - the PIC16CE625-04I/SS absolute maximum supply rating is 6.5V, but sustained operation above 5.5V degrades EEPROM data retention and brown-out reset threshold accuracy. For designs that see large supply transients (automotive load-dump or inductive kick), add a TVS diode and series resistor on VDD. Also note that the device is specified for 4MHz at 3.0V to 5.5V; pushing clock frequency higher than 4MHz is unsupported and will cause EEPROM write failures and ADC inaccuracies on related variants.
Impormasyon ng Pagsunod sa Kautusan
RoHS, REACH, lead-free and halogen-free status not explicitly listed in the verified web data; compliance values marked as 'unknown' per data authenticity rules. The 'I' suffix denotes industrial temperature grade (-40C to +85C), but is not equivalent to AEC-Q100 automotive qualification.
