ST10F272B_12 datasheet(11/188 Pages) STMICROELECTRONICS

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ST10F272B/ST10F272E

Introduction

Doc ID 11917 Rev 3

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Introduction

1.1

Description

The ST10F272B / E device is a STMicroelectronics ST10 family of 16-bit single-chip CMOS

microcontrollers.

The ST10F272B / E combines high CPU performance (up to 20 million instructions per

second) with high peripheral functionality and enhanced I/O capabilities. It also provides on-

chip high-speed single voltage Flash memory, on-chip high-speed RAM, and clock

generation via PLL.

The ST10F272B / E is processed in 0.18mm CMOS technology.The part is supplied with a

single 5 V supply and I/Os work at 5 V.

1.2

Special characteristics

The ST10F272B and ST10F272E devices are derivatives of the STMicroelectronics ST10

family of 16-bit single-chip CMOS microcontrollers.

These two derivatives slightly differ on the available RAM size and Analog Channel Input

number. These points will be highlighted in the corresponding chapters.

For all information that is common to the 2 derivatives, the generic ST10F272 name is used.

The ST10F272 combines high CPU performance (up to 32 million instructions per second)

with high peripheral functionality and enhanced I/O-capabilities. It also provides on-chip

high-speed single voltage Flash memory, on-chip high-speed RAM, and clock generation

via PLL.

ST10F272 is processed in 0.18mm CMOS technology. The MCU core and the logic is

supplied with a 5V to 1.8V on-chip voltage regulator. The part is supplied with a single 5V

supply and I/Os work at 5V.

The device is upward compatible with the ST10F269 device, with the following set of

differences:

Flash control interface is now based on STMicroelectronics third generation of stand-alone

Flash memories (M29F400 series), with an embedded Program/Erase Controller. This

completely frees up the CPU during programming or erasing the Flash.

Only one supply pin (ex DC1 in ST10F269, renamed into V18) on the QFP144 package is

used for decoupling the internally generated 1.8V core logic supply. Do not connect this pin

to 5.0V external supply. Instead, this pin should be connected to a decoupling capacitor

(ceramic type, typical value 10nF, maximum value 100nF).

The AC and DC parameters are modified due to a difference in the maximum CPU

frequency.

A new VDD pin replaces DC2 of ST10F269.

EA pin assumes a new alternate functionality: it is also used to provide a dedicated power

supply (see VSTBY) to maintain biased a portion of the XRAM (16Kbytes) when the main

Power Supply of the device (VDD and consequently the internally generated V18) is turned

off for low power mode, allowing data retention. VSTBY voltage shall be in the range 4.5-5.5

Volt, and a dedicated embedded low power voltage regulator is in charge to provide the 1.8V

ST10F272B Datasheet(PDF) 11 Page - STMicroelectronics

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