pca9564 NXP Semiconductors, pca9564 Datasheet - Page 3

• Manufacturer Part Number: pca9564
• Description: Parallel Bus To I2c-bus Controller
• Manufacturer: NXP Semiconductors

1. HVQFN package die supply ground is connected to both V
Philips Semiconductors
PIN CONFIGURATION — DIP, SO, TSSOP
PIN DESCRIPTION
NOTES:
2006 Sep 01
DIP, SO, TSSOP
Parallel bus to I
proper device operation. For enhanced thermal, electrical, and board level performance, the exposed pad needs to be soldered to the board
using a corresponding thermal pad on the board and for proper heat conduction through the board, thermal vias need to be incorporated in
the PCB in the thermal pad region.
1, 2, 3, 4,
5, 6, 7, 8
14, 15
10
11
12
13
16
17
18
19
20
9
PIN NUMBER
DNU
V
D1
D2
D3
D4
D5
D6
D7
D0
SS
1, 2, 3, 4, 5,
18, 19, 20
HVQFN
10
11, 12
1
2
3
4
5
6
7
8
9
10
13
14
15
16
17
7
6
8
9
1
2
C-bus controller
SW02260
SYMBOL
D0–D7
DNU
V
WR
RD
CE
A0, A1
INT
RESET
SCL
SDA
V
SS
DD
20
19
18
17
16
15
14
13
12
11
V
SDA
SCL
RESET
INT
A1
A0
CE
RD
WR
DD
I/O
Pwr
I
I
I
I
O
I
I/O
I/O
Pwr
TYPE
PIN
PIN
Data Bus: Bi-directional 3-State data bus used to transfer commands, data and
status between the controller and the CPU. D0 is the least significant bit.
Do not use: must be left floating (pulled LOW internally)
Ground
Write Strobe: When LOW and CE is also LOW, the contents of the data bus is
loaded into the addressed register. The transfer occurs on the rising edge of the
signal.
Read Strobe: When LOW and CE is also LOW, causes the contents of the
addressed register to be presented on the data bus. The read cycle begins on the
falling edge of RD.
Chip Enable: Active-LOW input signal. When LOW, data transfers between the CPU
and the controller are enabled on D0–D7 as controlled by the WR, RD and A0–A1
inputs. When HIGH, places the D0–D7 lines in the 3-State condition.
Address Inputs: Selects the controller internal registers and ports for read/write
operations.
Interrupt Request: Active-LOW, open-drain, output. This pin requires a pull-up
device.
Reset: A LOW level clears internal registers resets the I
I
I
Power Supply: 2.3 to 3.6 V
2
2
C-bus serial clock input/output (open-drain).
C-bus serial data input/output (open-drain).
SS
pin and exposed center pad. V
3
PIN CONFIGURATION — HVQFN
NAME AND FUNCTION
D3
D4
D5
D6
D7
1
2
3
4
5
SS
pin must be connected to supply ground for
TOP VIEW
2
C state machine.
15
14
13
12
11
SW02261
RESET
INT
A1
A0
SCL
PCA9564
Product data sheet