PIC16CE624/JW - 8-Bit 20MHz OTP MCU, 1.75KB EPROM | Microchip
MPN: PIC16CE624/JW ⚠ Lần mua cuốiPIC16CE624/JW Tóm tắt
An 8-bit microcontroller (MCU) is a small computer-on-a-chip containing a processor core, program memory, RAM, and peripherals designed to embed intelligence in electronic products. Within the broader taxonomy, an MCU sits under microprocessor -> microcontroller -> 8-bit microcontroller -> CMOS RISC microcontroller. The PIC16CE62X line belongs to Microchip's mid-range PIC architecture, which is upwards compatible with the PIC16C5X baseline family and the PIC12CXXX 8-pin devices, allowing engineers to port code across pin counts with minimal rewriting.
Key features include a maximum clock frequency of 20 MHz delivering 133 ns instruction execution, only 35 single-word instructions to learn, 128 bytes of data EEPROM, two comparators with a programmable voltage reference, a Brown-Out Detect (BOD), Power-On Reset (POR), Watchdog Timer (WDT), and an operating voltage range of 3.0V to 5.5V. The /JW suffix designates the 18-pin CERDIP (CERamic Dual In-line Package) form factor with an integrated quartz erasure window that allows the OTP program memory to be bulk-erased under UV light and reused during development or low-volume prototyping.
The architecture is built on a Harvard-class RISC core with separate program and data buses, a 14-bit wide instruction word, and a hardware stack of 8 levels. Combined with the 2 comparators and programmable voltage reference, this allows the chip to perform analog signal conditioning tasks that would otherwise require external op-amps - useful in sensor-interface and battery-monitoring designs.
Typical applications for PIC16CE624/JW include industrial sensor signal conditioning, analog front-ends for measurement equipment, automotive body and chassis subsystems, HVAC control boards, appliance controllers, and battery chargers. Its 128-byte EEPROM and on-board comparators make it well suited for designs that must store calibration constants or trim values across power cycles.
Designers should note that /JW CERDIP packages are larger, more expensive, and reserved for development and UV-eraseable prototyping; production runs typically migrate to the OTP-only plastic PDIP (/P), SOIC (/SO), or SSOP (/SS) variants. The CERDIP-18 footprint is a through-hole WDIP-18 land pattern that requires a socket for UV erasing. Pricing on the /JW windowed package typically exceeds the equivalent OTP-only package by 5x-10x.
This page synthesizes distributor pricing, drop-in CERDIP-18 alternatives, package migration guidance, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16CE624/JW — 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 PIC16CE624/JW (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Type, Program Memory Size, Timers, Operating Temperature.
PIC16CE623-04I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C72/JW
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C717/JW
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16CE624-04I/JW
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C774/JW
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16CE624/JW Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 Mid-Range 8-bit RISC |
| Instruction Set Width | 14-bit |
| Number of Instructions | 35 single-word instructions |
| Instruction Execution Time | 133 ns at 20 MHz (200 ns at 4 MHz) |
| Tần số xung maksimum | 20 MHz |
| Program Memory Type | OTP EPROM (One-Time-Programmable), UV-erasable in JW |
| Program Memory Size | 1.75 KB (1K x 14) |
| Data EEPROM | 128 bytes |
| Data RAM | 96 bytes |
| Supply Voltage Range | 3.0 V to 5.5 V |
| I/O Pins | 13 (bidirectional) |
| Comparators | 2 on-chip analog comparators |
| Programmable Voltage Reference | Yes (shared with comparators) |
| Timers | 1 x 8-bit Timer0, 1 x Watchdog Timer (WDT) |
| Reset Sources | POR, Brown-Out Detect (BOD), WDT |
| Hộp | 18-pin CERDIP (WDIP-18) with quartz window |
| Kiểu lắp đặt | Through-Hole |
| Nhiệt độ hoạt động | 0C to +70C (Commercial) |
| Trạng thái RoHS | Non-compliant (contains lead-bearing ceramic package) |
| Cấp MSL | 1 (not moisture-sensitive for through-hole CERDIP) |
Cấu hình chân PIC16CE624/JW
| Chân 1 | RA2 — Bidirectional I/O port A bit 2; analog comparator output |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 3 | RA4 — Bidirectional I/O port A bit 4 (open-drain) |
| Chân 4 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O port B bit 0; external interrupt input |
| Chân 7 | RB1 — Bidirectional I/O port B bit 1 |
| Chân 8 | RB2 — Bidirectional I/O port B bit 2 |
| Chân 9 | RB3 — Bidirectional I/O port B bit 3 |
| Chân 10 | RB4 — Bidirectional I/O port B bit 4 |
| Chân 11 | RB5 — Bidirectional I/O port B bit 5 |
| Chân 12 | RB6 — Bidirectional I/O port B bit 6 |
| Chân 13 | RB7 — Bidirectional I/O port B bit 7 |
| Chân 14 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| Chân 15 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| Chân 16 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Chân 17 | RA0 — Bidirectional I/O port A bit 0; analog comparator non-inverting input |
| Chân 18 | RA1 — Bidirectional I/O port A bit 1; analog comparator inverting input |
Ứng dụng tiêu biểu
PIC16CE624/JW phù hợp cho 6 Áp dụngs: Industrial Sensor Signal Conditioning, Battery-Powered Measurement Equipment, Appliance Control Boards, Automotive Body and Chassis Subsystems, HVAC Fan and Damper Controllers, Battery Charger Control Loops.
Industrial Sensor Signal Conditioning
The PIC16CE624/JW is a strong fit for industrial sensor signal conditioning because it integrates 2 on-chip analog comparators and a 32-step programmable voltage reference on the same die as the 8-bit CPU. A bridge-style pressure or strain-gauge sensor can be biased directly from the internal Vref and read via the comparators without external op-amps, while the 20 MHz CPU delivers 133 ns instruction execution for fast threshold detection. The 128-byte data EEPROM stores per-unit calibration constants across power cycles, and the Brown-Out Detect holds the device in reset during supply dips typical of factory floors. Designers migrate the production version to PIC16CE624-04I/P for industrial temp range and lower cost.
Được đề xuất
Battery-Powered Measurement Equipment
For battery-powered handheld measurement equipment, the PIC16CE624/JW runs from 3.0 V to 5.5 V, allowing direct connection to two alkaline cells or a 3.3 V LDO. The mid-range PIC core's 35-instruction set keeps firmware size small enough to fit in the 1.75 KB EPROM even with floating-point math libraries, and the 128-byte EEPROM records min/max log values that survive battery replacement. Its Watchdog Timer with up to 2.3 s prescaler provides robust recovery from power brown-outs in portable tools. The CERDIP /JW package is typically reserved for the engineering build; the production plastic PDIP (/P) or SOIC (/SO) variant drops in on the same 18-pin footprint for the released product.
Được đề xuất
Appliance Control Boards
White-goods and small-appliance control boards benefit from the PIC16CE624/JW's 13 high-current I/O pins (each capable of 25 mA source/sink) that can directly drive relays, triacs, solenoids, and LED indicators without external buffers. The integrated comparators and programmable voltage reference detect zero-crossing of the AC line for triac timing, while the 20 MHz CPU executes 35 single-word instructions every 133 ns for precise debounce and timing control. The 128-byte EEPROM stores user-selectable wash cycles, toaster darkness levels, or HVAC setpoints that survive power loss. Production designs typically migrate to the cheaper plastic PDIP (/P) or SOIC (/SO) variant after firmware is locked.
Được đề xuất
Automotive Body and Chassis Subsystems
Although the standard PIC16CE624/JW is commercial 0C to +70C, the same silicon in PIC16CE624-04I/JW or PIC16CE624-04I/P serves automotive body and chassis subsystems such as seat controllers, mirror positioners, and lighting timers. The on-chip Brown-Out Detect handles load-dump transients on the 12 V vehicle bus (after pre-regulation), and the Watchdog Timer recovers the MCU from EMI-induced code faults. The 128-byte EEPROM stores trim and configuration data such as seat memory positions and intermittent wiper intervals across battery disconnects. Note that AEC-Q100 qualification requires the automotive-grade PIC16F627AT or PIC16F628AT successor parts, not the /JW windowed CERDIP.
Được đề xuất
HVAC Fan and Damper Controllers
The PIC16CE624/JW is well matched to HVAC fan and damper controllers that require simple 8-bit control of brushed DC motors or 24 VAC damper actuators. The 2 analog comparators read thermistor divider networks directly, while the programmable voltage reference provides a stable excitation for the ratiometric measurement - removing the need for an external reference IC. The 20 MHz CPU executes a PID loop in 133 ns per instruction, leaving ample headroom for serial communication with a master thermostat. The 128-byte EEPROM retains the last user-selected fan speed and setpoint across power cycles. The plastic PDIP (/P) variant is normally used for HVAC production because windowed CERDIP is over-spec for indoor equipment.
Được đề xuất
Battery Charger Control Loops
Small sealed lead-acid (SLA) and NiMH battery chargers benefit from the PIC16CE624/JW's two analog comparators and programmable voltage reference, which together implement CC/CV (constant-current / constant-voltage) charge termination without external op-amps. The internal Vref sets the comparator thresholds for Vbat and dV/dt detection, while the 20 MHz CPU executes the charge-state machine and LED status indicators. The 128-byte EEPROM stores charge-cycle counters and battery-capacity estimates for charger diagnostics. The Watchdog Timer ensures the charger enters a safe state if firmware hangs during a charge cycle. Production volumes typically migrate to the plastic PDIP (/P) or SOIC (/SO) variant for cost reduction.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16CE624/JW — 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 | PIC16CE623-04I/P | PIC16C72/JW | PIC16C717/JW | PIC16CE624-04I/JW | PIC16C774/JW |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin CERDIP with UV window (/JW) | 18-pin PDIP - different package | 18-pin CERDIP with UV window - same | 18-pin CERDIP with UV window - same | 18-pin CERDIP with UV window - same | 18-pin CERDIP with UV window - same |
| Program Memory | 1.75 KB (1K x 14) OTP EPROM | 0.875 KB (-50%) | 2 KB (+14%) | 2 KB (+14%) | 1.75 KB (same) | 4 KB (+129%) |
| Data EEPROM | 128 bytes | 128 bytes (same) | 0 bytes (none) | 0 bytes (none) | 128 bytes (same) | 0 bytes (none) |
| Maximum Clock Frequency | 20 MHz | 4 MHz (-80%) | 20 MHz (same) | 20 MHz (same) | 4 MHz (-80%) | 20 MHz (same) |
| Analog Comparators | 2 | 2 (same) | 2 (same) | 2 (same) | 2 (same) | 2 (same) |
| ADC Channels | None | None | None | 6 x 8-bit | None | 12-bit ADC |
| Operating Temperature | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) |
Bảo phân biệt quan trọng
- On-chip data EEPROM (vsPIC16C72/JW)
- 20 MHz speed grade available (vsPIC16CE623-04I/P)
- Largest OTP EPROM in 18-pin PIC16CE6X family (vsPIC16C717/JW)
Ghi chú thiết kế
Do not confuse the /JW (windowed CERDIP) variant with the /P (plastic PDIP) variant in your BOM. The /JW package costs 5x-10x more and is intended only for development where UV EPROM erasure is required; production runs must migrate to PIC16CE624/P or PIC16CE624/SO to control cost. Additionally, the /JW ceramic package is NOT RoHS compliant, so any design targeting the EU market must use the plastic-package production variant. Verify your programmer supports the windowed device before committing to the /JW footprint.
Place the 18-pin CERDIP socket so the quartz window faces upward with at least 5 mm of clearance for UV eraser insertion. Decouple VDD (pin 14) with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, and add a bulk 10 uF electrolytic on the same supply rail. Keep the OSC1/OSC2 traces short (under 10 mm) and route them away from the RB port traces to minimize clock-coupling noise on digital inputs. The MCLR pin (4) requires a 10 kohm pull-up to VDD with a 100 nF capacitor to ground for noise-immune reset operation.
The PIC16CE624 draws a typical operating current of 2 mA at 5 V and 4 MHz, dropping below 1 uA in SLEEP mode. For battery-powered designs, use the SLEEP instruction combined with the Watchdog Timer wakeup to achieve sub-10 uA average current. Estimated: assuming 1% active duty cycle, average current is approximately 2 mA * 0.01 + 1 uA * 0.99 = 21 uA - extend battery life by 100x compared to continuous operation. Ensure the BOD is enabled in configuration bits to prevent corrupted EEPROM writes during supply brown-outs.
Thông tin tuân thủ
CERDIP-18 with quartz window uses lead-bearing ceramic sealing materials that exceed RoHS thresholds. Plastic PDIP (/P), SOIC (/SO), and SSOP (/SS) variants of the same silicon die ARE RoHS compliant - migrate to plastic package for RoHS-compliant production. AEC-Q100 qualification is NOT available on this part family - use PIC16F627AT or PIC16F628AT for automotive.
