AT91RM9200CJ-100 - ARM920T MPU, 180MHz, 100MHz Ind. Temp | Microchip
MPN： AT91RM9200CJ-100 ✗ 停產AT91RM9200CJ-100 概覽
A microprocessor (MPU) is a system-on-chip that integrates a CPU core, memory controllers, and peripherals on a single die. Within the broader semiconductor hierarchy, an MPU sits above a microcontroller (MCU) in compute capability, sitting alongside application processors and DSPs. The ARM920T core inside the AT91RM9200 adds a Memory Management Unit (MMU), enabling full operating systems such as Linux and embedded Windows CE, unlike MCU-class ARM7 parts that run bare-metal or RTOS-only.
Key features include a 16KB instruction cache plus 16KB data cache, write buffer, debug access port supporting JTAG-ICE, dedicated DBGU UART debug channel, embedded trace macrocell (ETM9) for real-time trace, and a power management controller with idle, slow-clock and peripheral-level gating. The external bus interface (EBI) supports SDRAM, SRAM, NAND flash with ECC, and CompactFlash, enabling flexible system memory architectures.
Typical applications for the AT91RM9200CJ-100 include industrial gateways and protocol converters, networked PLCs, point-of-sale terminals, embedded HMI panels, and legacy Linux-based control systems where the 256-ball LFBGA (CJ) package provides compact BGA mounting on standard 4-layer PCBs.
When designing with this device, allocate adequate ground and decoupling capacitance around the BGA balls, follow the Microchip AT91RM9200 hardware design checklist for SDRAM trace length matching (typically +/-50 mils for the byte-lane groups), and ensure the 32.768kHz slow crystal is placed within 5mm of the RTC pins for oscillator stability.
直接替換替代品，適用於 AT91RM9200CJ-100 — 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： AT91RM9200CJ-100 （相同外形與佔位） — 差異在於 Core Architecture, Debug Interface, Ethernet, MMU, Mounting Type.
AT91RM9200-CJ-002
✅ 直接替換聯絡詢價
查看資料表 →AT91RM9200-CJ-002
✅ 直接替換聯絡詢價
查看資料表 →AT91RM9200-CJ-100
✅ 直接替換📋 參考替代品（不在目錄中）
AT91RM9200-CI
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
AT91RM9200CJ-100 最大額定值與電氣特性
| Core Architecture | ARM920T (ARM/Thumb) |
| Maximum Core Frequency | 100 MHz (industrial grade, CJ-100 variant) |
| Maximum Performance | 200 MIPS |
| Instruction Cache | 16 KB |
| Data Cache | 16 KB |
| MMU | Yes (full virtual memory) |
| External Bus Interface | EBI (SDRAM, SRAM, NAND Flash, CompactFlash) |
| USB | USB 2.0 Full-Speed Host and Device |
| Ethernet | 10/100 MAC (MII/RMII interface) |
| Peripherals | MCI (SD/MMC), I2S, USARTs, SPIs, TWI (I2C), Timers |
| 封裝 | 256-ball LFBGA (CJ), 15x15 mm |
| 工作溫度 | -40C to +85C (industrial grade) |
| 供應電壓 | 1.65V to 1.95V (core), 3.0V to 3.6V (I/O) |
| Debug Interface | JTAG-ICE, DBGU UART, ETM9 embedded trace |
| 安裝類型 | Surface Mount (BGA) |
AT91RM9200CJ-100 腳位配置
| 腳位 A1 | VDDIO — I/O supply (3.3V) |
| 腳位 A2 | PE0 — GPIO / EBI data |
| 腳位 B1 | VDDCORE — Core supply (1.8V) |
| 腳位 B2 | PE1 — GPIO / EBI data |
| 腳位 C1 | VSS — Ground |
| 腳位 C2 | PE2 — GPIO / EBI data |
| 腳位 D1 | XIN — Main oscillator input |
| 腳位 D2 | PE3 — GPIO / EBI data |
| 腳位 E1 | XOUT — Main oscillator output |
| 腳位 E2 | PE4 — GPIO / EBI data |
| 腳位 F1 | NRST — System reset (active low) |
| 腳位 F2 | PE5 — GPIO / EBI data |
| 腳位 G1 | JTAGSEL — JTAG select |
| 腳位 G2 | PE6 — GPIO / EBI data |
| 腳位 H1 | TCK — JTAG clock |
| 腳位 H2 | PE7 — GPIO / EBI data |
| 腳位 J1 | TMS — JTAG mode select |
| 腳位 J2 | USB_DP — USB D+ data line |
| 腳位 K1 | TDI — JTAG data in |
| 腳位 K2 | USB_DM — USB D- data line |
| 腳位 L1 | TDO — JTAG data out |
| 腳位 L2 | VBUS — USB VBUS detect |
| 腳位 M1 | RTCK — Return JTAG clock |
| 腳位 M2 | ETM9_TCLK — Embedded trace clock |
| 腳位 N1 | DBGU_TXD — Debug UART TX |
| 腳位 N2 | ETM9_TDATA0 — Embedded trace data 0 |
| 腳位 P1 | DBGU_RXD — Debug UART RX |
| 腳位 P2 | ETM9_TDATA1 — Embedded trace data 1 |
| 腳位 R1 | EMAC_MDC — Ethernet management clock |
| 腳位 R2 | ETM9_TDATA2 — Embedded trace data 2 |
典型應用
AT91RM9200CJ-100 適用於 6 應用s: Industrial Protocol Gateway, Point-of-Sale (POS) Terminal, Networked PLC Controller, Embedded HMI Panel, Legacy Industrial Embedded Linux System, Medical Monitoring Data Logger.
Industrial Protocol Gateway
The AT91RM9200CJ-100's ARM920T core with MMU, 10/100 Ethernet MAC, and industrial -40C to +85C temperature range make it a fit for protocol gateway designs that translate between fieldbus networks (Modbus, Profibus, CANopen) and Ethernet/IP backbones. The MMU enables embedded Linux for protocol stacks and web-based configuration UIs. With 16KB instruction and data caches plus an external bus interface for 64MB+ SDRAM, the part handles multi-protocol conversion without CPU bottlenecks.
推薦
Point-of-Sale (POS) Terminal
The AT91RM9200CJ-100's USB 2.0 Full-Speed host port connects to barcode scanners, cash drawers, and receipt printers, while the Ethernet MAC handles LAN connectivity to back-office systems. The MMU-driven Linux support enables Java-based POS application stacks and secure payment libraries. Industrial temperature tolerance allows deployment in semi-outdoor retail environments. The 256-ball LFBGA CJ package provides the compact footprint needed for slimline terminal enclosures.
推薦
Networked PLC Controller
The AT91RM9200CJ-100's 200 MIPS ARM920T performance, EBI for SDRAM, and 10/100 Ethernet MAC support networked PLC designs where ladder-logic or IEC 61131-3 runtimes execute on embedded Linux. The compact 256-ball LFBGA CJ package fits in DIN-rail enclosures, while the -40C to +85C industrial range ensures operation in factory cabinets. Engineers pair the MPU with external digital I/O expanders over SPI to control relay and SSR outputs.
推薦
Embedded HMI Panel
HMI panels with color TFT displays benefit from the AT91RM9200CJ-100's I2S interface for audio feedback, MCI for SD card storage of recipe and firmware files, and SPI for touchscreen controllers. The MMU enables Qt/Embedded-based graphical user interfaces running on embedded Linux. Industrial temperature operation suits factory-floor HMI installations where ambient temperatures fluctuate widely during shift cycles.
推薦
Legacy Industrial Embedded Linux System
Existing designs based on Linux 2.6/3.x kernels (U-Boot bootloader, BusyBox rootfs, GCC 4.x toolchains) that need hardware refresh or spare parts replacement can use the AT91RM9200CJ-100 to maintain software compatibility. The ARM920T core supports legacy ARM9 GCC binaries, and the EBI preserves SDRAM/NAND-Flash memory maps. Industrial temperature grade ensures the legacy platform runs reliably across cold-storage and high-ambient factory sites.
推薦
Medical Monitoring Data Logger
The AT91RM9200CJ-100's full MMU enables medical-grade Linux distributions for HIPAA-compliant patient data logging, while its industrial temperature range supports clinical and laboratory deployment. The USB host port attaches to barcode scanners for patient ID wristband reads, the MCI port writes encrypted logs to SD cards, and the Ethernet MAC streams data to hospital EMR systems. The compact BGA package fits handheld or cart-mounted logger enclosures.
推薦
推薦產品摘要
工程參考資料，適用於 AT91RM9200CJ-100 — 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 | AT91RM9200-CJ | AT91RM9200-CJ-002 | AT91RM9200-CJ-100 | AT91RM9200-CI |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) |
| Package | 256-ball LFBGA (CJ), 15x15 mm | 256-ball LFBGA (CJ), 15x15 mm - same | 256-ball LFBGA (CJ), 15x15 mm - same | 256-ball LFBGA (CJ), 15x15 mm - same | 256-ball LFBGA (CI), 15x15 mm - same |
| Maximum Core Frequency | 100 MHz | 180 MHz | 180 MHz | 100 MHz | 100 MHz (industrial) |
| Operating Temperature Range | -40C to +85C (industrial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Core Architecture | ARM920T with MMU | ARM920T with MMU | ARM920T with MMU | ARM920T with MMU | ARM920T with MMU |
| Performance (MIPS) | 200 MIPS | 360 MIPS | 360 MIPS | 200 MIPS | 200 MIPS |
| USB Interface | USB 2.0 Full-Speed Host/Device | USB 2.0 Full-Speed Host/Device | USB 2.0 Full-Speed Host/Device | USB 2.0 Full-Speed Host/Device | USB 2.0 Full-Speed Host/Device |
| Ethernet MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC |
| Lifecycle Status | NRND (Not Recommended for New Designs) | NRND | NRND | NRND | NRND |
主要差異化特點
- Industrial temperature grade with guaranteed -40C to +85C operation (對比AT91RM9200-CJ-002)
- 100 MHz core clock for lower power and EMI (對比AT91RM9200-CJ)
- Full MMU supports embedded Linux and Windows CE (對比ARM7 microcontroller alternatives (e.g., AT91SAM7 series))
設計說明
BGA escape routing is critical for the 256-ball LFBGA (CJ) 15x15mm package with 0.8mm pitch. Use 4-layer stackup with 0.2mm-wide microvia fanout from each BGA ball to inner-layer traces. Decoupling: place one 100nF X7R 0402 capacitor per VDDCORE ball cluster and a bulk 4.7uF X5R 0805 within 5mm of the package. Vias-in-pad recommended for inner balls to maximize break-out density.
SDRAM traces routed from the EBI to external SDRAM must be length-matched within +/-50 mils per byte-lane group per the Atmel-1768 datasheet hardware design checklist. Use series 33 ohm damping resistors on the SDRAM clock and address lines to suppress ringing. Maintain 50 ohm controlled impedance on the SDRAM bus. Keep the SDRAM traces on inner signal layers with continuous ground planes above and below.
Estimated: With VDDCORE 1.8V at 100 MHz core frequency under typical Linux workload, core current draw is approximately 80-120 mA, dissipating 0.15W to 0.22W. The LFBGA CJ package thermal resistance theta_JA is approximately 30 C/W on a 4-layer JEDEC test board, resulting in a junction temperature rise of 4.5-6.6C above ambient. Industrial applications up to 85C ambient remain within the 125C junction spec without active cooling.
Do not omit the 32.768 kHz slow crystal on the RTCK pins - this clock drives the power management slow-clock mode and loss of it disables low-power standby transitions. The NRST pin requires an external 10 kohm pull-up to VDDCORE and a 100 nF capacitor to ground for clean power-on reset. Verify the JTAG chain integrity (TCK/TMS/TDI/TDO) before debugging - long TCK traces (>50mm) need a 33 ohm series terminator to prevent ringing.
合規資訊
Compliance data not present in the verified web sources; RoHS and lead-free status should be confirmed against Microchip's product declaration documents before production use. AEC-Q100 is not applicable for this MPU as it is not marketed as an automotive-grade part.
