saa1305t NXP Semiconductors, saa1305t Datasheet - Page 4

• Manufacturer Part Number: saa1305t
• Description: Saa1305t On/off Logic Ic
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PINNING
Note
1. The following results in a LOW-level voltage on pin CHI:
2004 Jan 15
SYMBOL
D0
D1
D2
D3
D4
D5
D6
D7
ON/OFF
RES
WD
TS
TST
OSC1
OSC2
XTAL1
XTAL2
SDA
V
SCL
V
LED
RP
CHI
SS
DD
On/off logic IC
a) A change on any of the (non-masked) inputs D0 to D7.
b) A device reset.
c) An alarm or V
d) An oscillator fault or a failed I
e) A failed Watchdog timer trigger sequence.
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
input D0; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D1; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D2; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D3; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D4; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D5; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D6; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
input D7; generates a reset pulse on pin RP and a LOW-level voltage on pin CHI
on/off output (off is active LOW); for controlling the enable of a separate power supply IC from the
microcontroller
reset input (active LOW); for power-on or system reset for the IC
Watchdog timer trigger input signal from the microcontroller
timer start input (active LOW); to trigger the V
test purpose input; must be connected to V
RC oscillator output (32.768 kHz)
RC oscillator input (32.768 kHz)
crystal oscillator output (32.768 kHz)
crystal oscillator input (32.768 kHz)
I
ground supply (0 V)
I
supply voltage; 5 V
light emitting diode output; to drive a LED up to 20 mA (high side switch to V
reset pulse output
change information output (active LOW); note 1
L
2
2
timer event.
C-bus serial data input/output; interface to the microcontroller
C-bus serial clock line input; interface to the microcontroller
2
C-bus read sequence after a change information signal.
10% with a current consumption of maximum 200 A (without LED current)
4
DESCRIPTION
SS
L
(is an undervoltage) timer (250 ms)
DD
Product specification
SAA1305T
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