Rainbow Electronics T89C5121 User Manual

Features

Advertising
background image

Rev. 4164G–SCR–07/06

Features

80C51 Core

– 12 or 6 Clocks per Instruction (X1 and X2 Modes)
– 256 Bytes Scratchpad RAM
– Dual Data Pointer
– Two 16-bit Timer/Counters: T0 and T1

T83C5121 with 16 Kbytes Mask ROM

T85C5121 with 16 Kbytes Code RAM

T89C5121 with 16 Kbytes Code RAM and 16 Kbytes EEPROM

On-chip Expanded RAM (XRAM): 256 Bytes

Versatile Host Serial Interface

– Full-duplex Enhanced UART (EUART) with Dedicated Baud Rate Generator (BRG):

Most Standard Speeds up to 230K bits/s at 7.36 MHz

– Output Enable Input
– Multiple Logic Level Shifters Options (1.8V to V

CC

)

– Automatic Level Shifter Option

Multi-protocol Smart Card Interface

– Certified with Dedicated Firmware According to ISO 7816, EMV2000, GIE-CB, GSM

11.12V and WHQL Standards

– Asynchronous Protocols T = 0 and T = 1 with Direct and Inverse Modes
– Baud Rate Generator Supporting All ISO7816 Speeds up to D = 32/F = 372
– Parity Error Detection and Indication
– Automatic Character Repetition on Parity Errors
– Programmable Timeout Detection
– Card Clock Stop High or Low for Card Power-down Mode
– Support Synchronous Card with C4 and C8 Programmable Outputs
– Card Detection and Automatic De-activation Sequence
– Step-up/down Converter with Programmable Voltage Output: 5V, 3V (± 8% at

60 mA) and 1.8V (±8% at 20 mA)

– Direct Connection to Smart Card Terminals:

Short Circuit Current Limitation
Logic Level Shifters
4 kV ESD Protection (MIL/STD 833 Class 3)

Alternate Card Support with CLK, I/O and RST According to GSM 11.12V Standard

2x I/O Ports: 6 I/O Port1 and 8 I/O Port3

2x LED Outputs with Programmable Current Sources: 2, 4, or 10 mA

Hardware Watchdog

Reset Output Includes

– Hardware Watchdog Reset
– Power-on Reset (POR)
– Power-fail Detector (PFD)

4-level Priority Interrupt System with 7 Sources

7.36 to 16 MHz On-chip Oscillator with Clock Prescaler

Absolute CPU Maximal Frequency: 16 MHz in X1 mode, 8MHz in X2 mode

Idle and Power-down Modes

Voltage Operation: 2.85V to 5.4V

Low Power Consumption

– 8 mA Operating Current (at 5.4V and 3.68 MHz)
– 150 mA Maximum Current with Smart Card Power-on (at 16 MHz X1 Mode)
– 30

μ

A Maximum Power-down Current at 3.0V (without Smart Card)

– 100

μ

A Maximum Power-down Current at 5.4V (without Smart Card)

Temperature Range

– Commercial: 0 to +70

°

C Operating Temperature

– Industrial: -40 to +85

°

C Operating Temperature

Packages

– SSOP24
– QFN32
– PLCC52

8-bit
Microcontroller
with Multi-
protocol Smart
Card Interface

T83C5121
T85C5121
T89C5121
AT83C5121
AT85C5121
AT89C5121

Advertising
Table of contents