ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 191

• Manufacturer Part Number: ST7FOXK1
• Description: Low cost flash 8bit micro
• Manufacturer: STMicroelectronics

Specifications of ST7FOXK1

• 4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 1K write/erase cycles guaranteed Data retention
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
• A/d Converter: up to 10 input channels

ST7FOXF1, ST7FOXK1, ST7FOXK2
12.3.3
Internal RC oscillator
To improve clock stability and frequency accuracy, it is recommended to place a decoupling
capacitor, typically 100 nF, between the V
device
Internal RC oscillator calibrated at 5.0 V
The ST7 internal clock can be supplied by an internal RC oscillator (selectable by option
byte).
Table 71.
1. See
2. Guaranteed by characterization
3. Not tested in production
Symbol
ACC
t
f
su(RC)
G(RC)
f
RC
RC
Section 6.1.1: Internal RC oscillator
Internal RC oscillator
Accuracy of Internal
RC oscillator setup
RC oscillator with
RCCR=RCCR0
Internal RC oscillator characteristics (5.0 V calibration)
RC trimming
Parameter
granularity
frequency
time
1)
T
A
= 25 °C, V
RCCR = FF (reset value),
T
without user calibration
T
T
A
T
T
V
V
A
A
with user calibration
with user calibration
with user calibration
A
A
RCCR=RCCR0
= 25 °C, V
DD
DD
= 25 °C, V
= 25 °C, V
T
T
= 25 °C, V
= 25 °C, V
A
A
Conditions
= 0 to +85 °C,
= 4.5 to 5.5 V
= 4.5 to 5.5 V
DD
= -40 to 0 °C,
DD
and V
= 4.5 to 5.5 V
DD
DD
DD
DD
DD
= 5 V
SS
= 5 V
= 5 V
= 5 V
= 5 V
(1)
(2)
(2)
pins as close as possible to the ST7
,
(2)
(2)
Min
-2.5
-2
-4
Electrical characteristics
4
Typ
5.5
±7
8
6
(3)
Max Unit
2.5
2
4
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kHz
µs
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