This document defines and specifies the TECHFAITH WIRELESS PIML-900/1800 module with 32 Mb of Flash memory and 4 Mb of SRAM (32/4), which support GSM/GPRS function.
The PIML-900/1800 is a self‑contained GSM 900/1800 GPRS dual‑band module designed for very small terminals. It integrates 32 Mb of Flash memory, 4 Mb of SRAM, a real‑time clock, battery charger, echo cancellation, and a full GSM/GPRS software stack.
The document details the module's interfaces (general‑purpose connector, power supply, SIM, audio, UART, etc.), mechanical dimensions (8 × 32 × 3.9 mm), power consumption, RF performance, safety recommendations, and connector data sheets.
| Flash memory | 32 Mb |
|---|---|
| SRAM | 4 Mb |
| EGSM 900 output power | 2 W @ 3.8 V |
| GSM1800 output power | 1 W @ 3.8 V |
| SIM interface voltage | 3 V |
| Physical dimensions | 8 × 32 × 3.9 mm |
The module includes 32 Mb of Flash memory and 4 Mb of SRAM.
The SIM interface operates at 3 V.