TDA844 Philips Semiconductors, TDA844 Datasheet - Page 5

• Manufacturer Part Number: TDA844
• Description: Octuple 6-bit DACs with I2C-bus
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
I
The I
Table 1 I
Note
1. S = START condition; A2 to A0 = programmable address bits; A = Acknowledge; I3 to I0 = Instruction bits;
Valid addresses are:
All other addresses cannot be acknowledged by the circuit. The actual slave address depends on the programmable
address bits A2, A1 and A0. This way up to eight circuits can be used on one I
Valid instructions are: 00H to 0FH; F0H to FFH.
1999 Apr 29
handbook, halfpage
2
S
C-bus interface
TDA8444 and TDA8444AT: 40H, 42H, 44H, 46H, 48H, 4AH, 4CH and 4EH
TDA8444T: 48H, 4AH, 4CH and 4EH (A2 is always logic 1).
Octuple 6-bit DACs with I
SD to SA = subaddress bits; X = don’t care; D5 to D0 = data bits; P = STOP condition.
2
C-bus interface is a receive-only slave, which accepts data according the format shown in Table 1.
Fig.4 Pin configuration (TDA8444AT; SO20).
0 1 0 0 A2 A1 A0 0
2
C-bus format (see note 1)
V MAX
V CC
SDA
SCL
V EE
n.c.
n.c.
A0
A1
A2
10
1
2
3
4
5
6
7
8
9
TDA8444AT
MGL532
A
20
19
18
17
16
15
14
13
12
11
DAC7
n.c.
DAC6
DAC5
DAC4
DAC3
DAC2
DAC1
n.c.
DAC0
2
C-bus
I3 I2 I1 I0 SD SC SB SA
5
A
2
C-bus.
X X D5 D4 D3 D2 D1 D0
TDA8444; TDA8444T;
Product specification
TDA8444AT
A
P