PCA8521 Datasheet, PDF (5/20 Pages) NXP Semiconductors – Infrared remote control transmitter RC5

Philips Semiconductors
Infrared remote control transmitter RC5
Product specification
PCA8521
20-pin dual in-line and small outline package
SYMBOL
XTAL1
XTAL2
SN7
SN0
SN1
SN2
SN3
SN6
SN4
SN5
DR5
DR4
DR3
DR2
DR1
DR0
DR6
V_SS
LOUT
V_DD
PIN
DESCRIPTION
1 oscillator input
2 oscillator output
3 sense line 7 for key matrix
4 sense line 0 for key matrix
5 sense line 1 for key matrix
6 sense line 2 for key matrix
7 sense line 3 for key matrix
8 sense line 6 for key matrix
9 sense line 4 for key matrix
10 sense line 5 for key matrix
11 drive line 5 for key matrix
(active LOW)
12 drive line 4 for key matrix
(active LOW)
13 drive line 3 for key matrix
(active LOW)
14 drive line 2 for key matrix
(active LOW)
15 drive line 1 for key matrix
(active LOW)
16 drive line 0 for key matrix
(active LOW)
17 drive line 6 for key matrix
(active LOW)
18 ground
19 output signal (active LOW)
20 power supply
handbook, halfpage
XTAL1 1
XTAL2 2
SN7 3
SN0 4
20 VDD
19 LOUT
18 VSS
17 DR6
SN1 5
SN2 6
16 DR0
PCA8521
15 DR1
SN3 7
14 DR2
SN6 8
13 DR3
SN4 9
12 DR4
SN5 10
11 DR5
MBH033
Fig.3 Pin configuration (DIP/SO20).
1999 Jun 15
5