ST10F273Z4 STMicroelectronics, ST10F273Z4 Datasheet - Page 12
ST10F273Z4
Manufacturer Part Number
ST10F273Z4
Description
16-BIT MICROCONTROLLER WITH MAC UNIT, UP TO 832 KBYTES FLASH MEMORY AND UP TO 68 KBYTES RAM
Manufacturer
STMicroelectronics
Datasheet
1.ST10F273Z4.pdf
(188 pages)
Specifications of ST10F273Z4
Single Voltage Supply
5 V ±10%
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Introduction
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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 V
pins of ST10F269.
ST10F273Z4
DD
/V
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