ST10F273Z4 datasheet(12/188 Pages) STMICROELECTRONICS

12 / 188 page

Introduction

ST10F273Z4

12/188

restrictions and functional differences due to the XBUS peculiarities are present

between the classic PWM and the new XPWM.

●

An I2C interface on the XBUS is added (see X-I2C or simply I2C interface).

●

CLKOUT function can output either the CPU clock (like in ST10F269) or a software

programmable prescaled value of the CPU clock.

●

On-chip RAM memory and FLASH size have been increased.

●

PLL multiplication factors have been adapted to new frequency range.

●

A/D Converter is not fully compatible versus ST10F269 (timing and programming

model). Formula for the conversion time is still valid, while the sampling phase

programming model is different.

Besides, additional 8 channels are available on P1L pins as alternate function: The

accuracy reachable with these extra channels is reduced with respect to the standard

Port5 channels.

●

External Memory bus is affected by limitations on maximum speed and maximum

capacitance load: ST10F273Z4 is not able to address an external memory at 64 MHz

with 0 wait states.

●

XPERCON register bit mapping modified according to new peripherals implementation

(not fully compatible with ST10F269).

●

Bondout chip for emulation (ST10R201) cannot achieve more than 50MHz at room

temperature (so no real-time emulation possible at maximum speed).

●

Input section characteristics are different. The threshold programmability is extended to

all port pins (additional XPICON register); it is possible to select standard TTL (with up

to 400mV of hysteresis) and standard CMOS (with up to 750mV of hysteresis).

●

Output transition is not programmable.

●

CAN module is enhanced: ST10F273Z4 implements two C-CAN modules, so the

programming model is slightly different. Besides, the possibility to map in parallel the

two CAN modules is added (on P4.5/P4.6).

●

On-chip main oscillator input frequency range has been reshaped, reducing it from 1 to

25 MHz down to 4 to 12 MHz. This is a low power oscillator amplifier, that allows a

power consumption reduction when Real-Time Clock is running in Power down mode,

using as reference the on-chip main oscillator clock. When this on-chip amplifier is

used as reference for Real-Time Clock module, the Power-down consumption is

dominated by the consumption of the oscillator amplifier itself.

●

A second on-chip oscillator amplifier circuit (32 kHz) is implemented for low power

modes: it can be used to provide the reference to the Real-Time Clock counter (either

in Power down or Stand-by mode). Pin XTAL3 and XTAL4 replace a couple of VDD/VSS

pins of ST10F269.

ST10F273Z4 Datasheet(PDF) 12 Page - STMicroelectronics

ST10F273Z4 Datasheet(HTML) 12 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL