RFHCS362G datasheet(10/54 Pages) MICROCHIP

Part #	RFHCS362G

Description	KEELOQ짰 Code Hopping Encoder with UHF ASK/FSK Transmitter

Download	54 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

Logo

10 / 54 page

rfHCS362G/362F

DS41189B-page 10

FIGURE 2-2:

I/O CIRCUITS

2.1

Encoder Architectural Overview

2.1.1

ONBOARD EEPROM

The rfHCS362G/362F has an onboard nonvolatile

EEPROM which is used to store user programmable

data. The data can be programmed at the time of pro-

duction and includes the security-related information

such as encoder keys, serial numbers, discrimination

and seed values. All the security related options

are read protected. The rfHCS362G/362F has built-in

protection against counter corruption. Before every

EEPROM write, the internal circuitry also ensures that

the high voltage required to write to the EEPROM is at

an acceptable level.

2.1.2

INTERNAL RC OSCILLATOR

The rfHCS362G/362F has an onboard RC oscillator

that controls all the logic output timing characteristics.

The oscillator frequency varies within ±10% of the

nominal value (once calibrated over a voltage range of

2V – 3.5V or 3.5V – 6.3V). All the timing values

specified in this document are subject to the oscillator

variation.

FIGURE 2-3:

TYPICAL rfHCS362G/362F

NORMALIZED OSCILLATOR

PERIOD VS. TEMPERATURE

S0, S1, S2,

RS

Inputs

VDD

RFEN

S3 Input/

RS

RDATA

DATA I/O

LED output

RL

RH

VDD

DATA

LEDH

LEDL

RFEN Output

PFET

NFET

PFET

NFET

SHIFT input

SHIFT

RFENIN

NFET

FSKOUT OUTPUT

ANT1, ANT2 outputs

CLKOUT

VDDRF

PFET

NFET

PS/DATAASK

VDDRF

V

PLL Lock

20

μA

VDDRF

V

VCO

5 pF

200

Ω

200

Ω

Change

Pump

LF

RFENIN input

XTAL

output

PS

DATAFSK input

0.94

1.10

1.08

1.06

1.04

1.02

1.00

0.98

0.96

0.92

0.90

VDD Legend

= 2.0V

= 3.0V

= 6.0V

Temperature °C

-50-40-30-20-10 0 10 20 30 40 50 6070 80 90

Note: Values are for calibrated oscillator

Similar Part No. - RFHCS362G

Manufacturer	Part #	Datasheet	Description
Microchip Technology	RFHCS362G	502Kb / 60P	Code Hopping Encoder with UHF ASK/FSK Transmitter 2002

More results

Similar Description - RFHCS362G

Manufacturer	Part #	Datasheet	Description
Microchip Technology	RFHCS362F	502Kb / 60P	Code Hopping Encoder with UHF ASK/FSK Transmitter 2002
	HCS360	421Kb / 28P	KEELOQ짰 Code Hopping Encoder 2001
	HCS200	728Kb / 34P	KEELOQ짰 Code Hopping Encoder 32-bit hopping code 2011
	HCS410	481Kb / 36P	KEELOQ짰 Code Hopping Encoder and Transponder 2001
	HCS320	740Kb / 38P	KEELOQ짰 Code Hopping Encoder Automatic code word completion 2011
ATMEL Corporation	ATA5756	321Kb / 20P	UHF ASK/FSK TRANSMITTER
	U2741B	200Kb / 11P	UHF ASK/FSK TRANSMITTER
	T5750	211Kb / 13P	UHF ASK/FSK Transmitter
	T5753	270Kb / 13P	UHF ASK/FSK Transmitter
	ATA5756	340Kb / 20P	UHF ASK/FSK Transmitter

More results

RFHCS362G Datasheet(PDF) 10 Page - Microchip Technology

RFHCS362G Datasheet(HTML) 10 Page - Microchip Technology

Similar Part No. - RFHCS362G

Similar Description - RFHCS362G

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Datasheet Download

Link URL