ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 73

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

1
2
3
4
5
6
(Demux Bus)
RSTOUT
RD, WR
The ST10R272L is reset in its default state asynchronously with RSTIN. The internal
RAM content may be altered if an internal write access is in progress.
On power-up, RSTIN must be asserted t
Internal pullup devices are active on the PORT0 lines, so - input level is high if the respec-
tive pin is left open - or is low if the respective pin is connected to an external pulldown
device.
The ST10R272L starts execution here at address 00’0000h.
RSTOUT stays active until execution of the EINIT (end of initialization) instruction.
Activation of the IO pins is controlled by software
PORT0
Other IOs
Internal
RSTIN
Signal
PORT1
Reset
Figure 27 External asynchronous hardware reset (power-up reset): Vpp low
ALE
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t
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ST10R272L - ELECTRICAL CHARACTERISTICS
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after a stabilized CPU clock signal is available.
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