ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 131

• Manufacturer Part Number: ST72651AR6
• Description: LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI
• Manufacturer: STMicroelectronics

Specifications of ST72651AR6

• Dual Supply Management: analog voltage detector on the USB power line to enable smart power switching from USB power to battery (on E suffix devices).
• Programmable Internal Voltage Regulator For Memory Cards (2.8v To 3.5v) Supplying: Flash Card I/O lines (voltage shifting)
• 5 Usb Endpoints: 1 control endpoint
• Dtc (data Transfer Coprocessor): Universal Serial/Parallel communications interface, with software plug-ins for current and future protocol standards

13.5 CLOCK AND TIMING CHARACTERISTICS
Subject to general operating conditions for V
13.5.1 General Timings
13.5.2 External Clock Source
Figure 73. Typical Application with an External Clock Source
Notes:
1. Time measured between interrupt event and interrupt vector fetch. Δt
the current instruction execution.
2. Data based on design simulation and/or technology characteristics, not tested in production.
t
t
Symbol
Symbol
w(OSC1H)
V
w(OSC1L)
V
t
t
t
r(OSC1)
f(OSC1)
c(INST)
OSC1H
OSC1L
t
v(IT)
I
L
V
V
Instruction cycle time
Interrupt reaction time
t
OSC1 input pin high level voltage
OSC1 input pin low level voltage
OSC1 high or low time
OSC1 rise or fall time
OSCx Input leakage current
OSC1H
OSC1L
v(IT)
EXTERNAL
CLOCK SOURCE
= Δt
c(INST)
Parameter
Parameter
+ 10
t
r(OSC1)
2)
1)
2)
t
f(OSC1)
OSC2
OSC1
Doc ID 7215 Rev 4
90%
f
f
V
DD
CPU
CPU
SS
10%
, f
≤V
=8MHz
=8MHz
OSC
IN
Conditions
Conditions
≤V
, and T
DD
t
Not connected internally
w(OSC1H)
A
.
c(INST)
I
is the number of t
L
t
w(OSC1L)
1.25
0.7xV
Min
250
10
2
Min
V
15
SS
f
DD
OSC
ST72XXX
Typ
500
Typ
4
CPU
cycles needed to finish
0.3xV
1500
Max
2.75
ST72651AR6
Max
12
22
V
15
±1
DD
DD
131/161
Unit
Unit
t
t
CPU
ns
CPU
μs
μA
ns
V