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PCA9621PW,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
PCA9621 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 9 March 2011 10 of 18
NXP Semiconductors
PCA9621
65 mA 8-bit 2-wire bus output port
Figure 12 shows a simple 7-segment display drive arrangement. All of the 7 segments
plus decimal point can be driven from a single PCA9621. By using the address pins, up to
8 digits can be addressed from a single bus. When running at 1 MHz, all 8 digits can be
updated in less than 0.2 ms.
Further, by using the arrangement described above and shown in Figure 11
, the number
of digits driven may be increased significantly.
Figure 13 shows the PCA9621 used in conjunction with other NXP Semiconductors
2-wire bus buffers to form a multiplexer arrangement. Using the PCA9621 to control
multiples of either PCA9521 or PCA9522 produces an isolating bus switch/multiplexer
that has fully compliant I
2
C-bus I/O levels, low offset voltages, and large noise margins.
Using PCA9522 in this arrangement additionally provides ‘hot-swap’ capability.
Fig 12. PCA9621 as 7-segment display driver
Address lines allow this structure to be repeated 8 more times.
(1) Or PCA9525 (400 pF), or PCA9605 (4000 pF), or PCA9646 (4 × 4000 pF).
Fig 13. PCA9621 as part of a fully isolating I
2
C-bus multiplexer
002aaf39
SCL
SDA
PCA9621
V
DD
P0
P1
U1
RESET
P2
P3
A[2:0]
3
P4
P5
P6
P7
R1 R2
SCL
SDA
5 V
repeat up to 8 times using
address pins on PCA9621
002aaf39
9
SCL
SDA
PCA9621
V
DD
P0
P1
U1
RESET
P2
P3
A[2:0]
3
P4
P5
P6
P7
SA1
SB1
V
CC
EN
R1 R2
SCL
SDA
3.3 V
PCA9521
(1)
U2
SA2
SB2
400 pF
(1)
SCLC
SDAC
V
CC
EN
PCA9522
(1)
U3
SCLB
SDAB
400 pF
(1)
3.3 V
RDY
multiple
isolated
buses
PCA9621 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 9 March 2011 11 of 18
NXP Semiconductors
PCA9621
65 mA 8-bit 2-wire bus output port
12. Package outline
Fig 14. Package outline SOT109-1 (SO16)
X
w M
θ
A
A
1
A
2
b
p
D
H
E
L
p
Q
detail X
E
Z
e
c
L
v M
A
(A )
3
A
8
9
1
16
y
pin 1 index
UNIT
A
max.
A
1
A
2
A
3
b
p
cD
(1)
E
(1) (1)
eH
E
LL
p
QZywv θ
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC JEDEC JEITA
mm
inches
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
1.27
6.2
5.8
0.7
0.6
0.7
0.3
8
0
o
o
0.25 0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
1.0
0.4
SOT109-1
99-12-27
03-02-19
076E07 MS-012
0.069
0.010
0.004
0.057
0.049
0.01
0.019
0.014
0.0100
0.0075
0.39
0.38
0.16
0.15
0.05
1.05
0.041
0.244
0.228
0.028
0.020
0.028
0.012
0.01
0.25
0.01 0.004
0.039
0.016
0 2.5 5 mm
scale
S
O16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109
-1
PCA9621 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 9 March 2011 12 of 18
NXP Semiconductors
PCA9621
65 mA 8-bit 2-wire bus output port
Fig 15. Package outline SOT403-1 (TSSOP16)
UNIT A
1
A
2
A
3
b
p
cD
(1)
E
(2) (1)
eH
E
LL
p
QZywv θ
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC JEDEC JEITA
mm
0.15
0.05
0.95
0.80
0.30
0.19
0.2
0.1
5.1
4.9
4.5
4.3
0.65
6.6
6.2
0.4
0.3
0.40
0.06
8
0
o
o
0.13 0.10.21
DIMENSIONS (mm are the original dimensions)
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
0.75
0.50
SOT403-1 MO-153
99-12-27
03-02-18
w M
b
p
D
Z
e
0.25
18
16
9
θ
A
A
1
A
2
L
p
Q
detail X
L
(A )
3
H
E
E
c
v M
A
X
A
y
0 2.5 5 mm
scale
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403
-1
A
max.
1.1
pin 1 index
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

PCA9621PW,118

Mfr. #:
Buy PCA9621PW,118
Manufacturer:
NXP Semiconductors
Description:
IC BUS PORT 8BIT 65MA 16TSSOP
Lifecycle:
New from this manufacturer.
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