HCS201/SN Microchip Technology, HCS201/SN Datasheet - Page 8

• Manufacturer Part Number: HCS201/SN
• Description: IC,Remote-Control Transmitter/Encoder,CMOS,SOP,8PIN
• Manufacturer: Microchip Technology
• Type: Code Hopping Encoderr

Specifications of HCS201/SN

• Applications: Remote Secure Access, Keyless Entry
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

HCS201
3.7.3
BRS selects the speed of transmission and the code
word blanking. Table 3-5 shows how the bit is used to
select the different baud rates and Section 5.5 provides
detailed explanation in code word blanking.
TABLE 3-5:
3.7.4
If this bit is cleared, only one code is completed if the
HCS201 is activated. If this bit is set, at least four com-
plete code words are transmitted, even if code word
blanking is enabled.
3.7.5
If this bit is cleared, no transmission pulse is transmit-
ted before a transmission. If the bit is set, a START
pulse (1 T
ing, before the preamble of the first code word.
3.7.6
This bit determines the value of S3 in the function code
during a transmission and the high trip point selected
by V
rors S2 during a transmission. If the S3SET bit is set,
S3 in the function code (Button Status) is always set,
independent of the value of S2.
3.7.7
If this bit is set, a long 32-bit Serial Number is transmit-
ted. If this bit is cleared, a standard 28-bit Serial Number
is transmitted followed by 4 bits of the function code
(Button Status).
DS41098C-page 8
BRS
LOWS
0
1
E
in section 3.6.2. If this bit is cleared, S3 mir-
BAUD RATE SELECT BITS (BRS)
MINIMUM FOUR TRANSMISSIONS
(MTX4)
TRANSMIT PULSE ENABLE (TXEN)
S3 SETTING (S3SET)
EXTENDED SERIAL NUMBER
(XSER)
long) is transmitted after button de-bounc-
Basic Pulse
Element
400 s
200 s
BAUDRATE SELECT
Code Words
Transmitted
1 out of 2
All
2001 Microchip Technology Inc.