C8051F850-B-GS datasheet(10/290 Pages) SILABS

Part #	C8051F850-B-GS

Description	Low-Cost 8-bit MCU Family with up to 8 kB of Flash

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Manufacturer	SILABS [Silicon Laboratories]

Direct Link	http://www.silabs.com

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C8051F85x/86x

10

Preliminary Rev 0.6

Table 1.3. Reset and Supply Monitor

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

VDD Supply Monitor Threshold

VVDDM

1.85

1.95

2.1

V

Power-On Reset (POR) Threshold

VPOR

Rising Voltage on VDD

—

1.4

—

V

Falling Voltage on VDD

0.8

—

1.3

V

VDD Ramp Time

tRMP

Time to VDD > 2.2 V

10

—

3000

µs

Reset Delay from POR

tPOR

Relative to VDD >

VPOR

3

—

TBD

ms

Reset Delay from non-POR source

tRST

Time between release

of reset source and

code execution

—

30

—

µs

RST Low Time to Generate Reset

tRSTL

15

—

µs

Missing Clock Detector Response

Time (final rising edge to reset)

tMCD

FSYSCLK > 1 MHz

—

0.625

1.2

ms

Missing Clock Detector Trigger 

Frequency

FMCD

—

7.5

13

kHz

VDD Supply Monitor Turn-On Time

tMON

—

2

—

µs

Table 1.4. Flash Memory

Parameter

Symbol

Test Condition

Min

Typ

Max

Units

Write Time1

tWRITE

One Byte

TBD

20

TBD

µs

Erase Time1

tERASE

One Page

TBD

5

TBD

ms

VDD Voltage During Programming2

VPROG

2.2

—

3.6

V

Endurance (Write/Erase Cycles)

NWE

20k

100k

—

Cycles

Notes:

1. Does not include sequencing time before and after the write/erase operation, which may be multiple SYSCLK cycles.

2. Flash can be safely programmed at any voltage above the supply monitor threshold (VVDDM).

3. Data Retention Information is published in the Quarterly Quality and Reliability Report.

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C8051F850-B-GS Datasheet(PDF) 10 Page - Silicon Laboratories

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