PCA9672PW ,Remote 8-bit I/O expander for Fm+ I虏C-bus with interrupt and resetApplications LED signs and displays Servers Keypads Industrial control Medical equipment PLCs ..
PCA9673BQ , Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset
PCA9673BS ,Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and resetApplications LED signs and displays Servers Industrial control Medical equipment PLCs Cellula ..
PCA9673D ,Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and resetFeatures and benefits2 1MHz I C-bus interface2 Compliant with the I C-bus Fast and Standard modes ..
PCA9673DK , Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset
PCA9673PW ,Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and resetGeneral descriptionThe PCA9673 provides general purpose remote I/O expansion for most microcontroll ..
PF08127B , MOS FET Power Amplifier Module for E-GSM and DCS1800/1900 Triple Band Handy Phone
PF38F5070M0Y0B0 , Numonyx Wireless Flash Memory (W18) with AD Multiplexed IO
PF38F5070M0Y1V0 , StrataFlash® Cellular Memory
PF48F3000P0ZTQ0 , Numonyx StrataFlash Embedded Memory
PF5001 ,Top Electronics - 50A 1/2 PRESS-FIT DIODE
PF5001 ,Top Electronics - 50A 1/2 PRESS-FIT DIODE
PCA9672BS-PCA9672PW
Remote 8-bit I/O expander for Fm+ I虏C-bus with interrupt and reset
1. General descriptionThe PCA9672 provides general-purpose remote I/O expansion via the two-wire
bidirectional I2 C-bus (serial clock (SCL), serial data (SDA)).
The devices consist of eight quasi-bidirectional ports, 1 MHz 30 mA drive I2 C-bus
interface, three hardware address inputs and a reset input operating between 2.3 V and
5.5V. 1MHz I2 C-bus Fast-mode Plus (Fm+) can support PWM dimming of LEDs, and
higher I2 C-bus drive 30 mA allows more devices to be on the bus without the need for bus
buffers. The quasi-bidirectional port can be independently assigned as an input to monitor
interrupt status or keypads, or as an output to activate indicator devices such as LEDs.
The system master can read from the input port or write to the output port through a single
register.
The low current consumption of 2.5 A (typical, static) is great for mobile applications and
the latched output ports have 25 mA high current sink drive capability for directly driving
LEDs.
The PCA9672 has two hardware address pins, allowing sixteen of each device to be on
the same I2 C-bus without the need for bus buffers, so there can be supporting up to
128 I/Os (for example, 128 LEDs).
The active LOW open-drain interrupt output (INT) can be connected to the interrupt logic
of the microcontroller and is activated when any input state differs from its corresponding
input port register state. It is used to indicate to the microcontroller that an input state has
changed and the device needs to be interrogated without the microcontroller continuously
polling the input register via the I2 C-bus.
The internal Power-On Reset (POR) and active LOW hardware reset pin (RESET)
initialize the I/Os as inputs with a weak internal pull-up 100 A current source.
2. Features and benefitsI2 C-bus to parallel port expander 1MHz I2 C-bus interface (Fast-mode Plus I2 C-bus) Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to VDD with
100 A current source 8-bit remote I/O pins that default to inputs at power-up Latched outputs with 25 mA sink capability directly drive LEDs Total package sink capability of 200 mA Active LOW reset input Active LOW open-drain interrupt output
PCA9672
Remote 8-bit I/O expander for Fm+ I2 C-bus with interrupt and
reset
Rev. 3 — 27 May 2013 Product data sheet
NXP Semiconductors PCA9672
Remote 8-bit I/O expander for Fm+ I2 C-bus with interrupt and reset Sixteen programmable slave addresses using two address pins Readable device ID (manufacturer, device type, and revision) Software reset Low standby current (2.5 A typical) 40 C to +85 C operation ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per
JESD22-C101 Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA Packages offered: SO16, TSSOP16 and HVQFN16
3. Applications LED signs and displays Servers Keypads Industrial control Medical equipment PLCs Cellular telephones Mobile devices Gaming machines Instrumentation and test measurement
4. Ordering information
4.1 Ordering options
Table 1. Ordering informationPCA9672BS 672 HVQFN1
plastic thermal enhanced very thin quad flat package; no leads; terminals; body33 0.85 mm
SOT758-1
PCA9672D PCA9672D SO16 plastic small outline package; 16 leads; body width 7.5 mm SOT162-1
PCA9672PW PCA9672 TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1
Table 2. Ordering optionsPCA9672BS PCA9672BS,118 HVQFN16 Reel 13” Q1/T1 *standard mark SMD 6000 Tamb= 40 C to +85C
PCA9672D PCA9672D,512 SO16 Standard marking * tube dry pack 1920 Tamb= 40 C to +85C
PCA9672D,518 SO16 Reel 13” Q1/T1 *standard mark SMD dry pack 1000 Tamb= 40 C to +85C
PCA9672PW PCA9672PW,112 TSSOP16 Standard marking * IC’s tube -
DSC dry pack
2400 Tamb= 40 C to +85C
PCA9672PW,118 TSSOP16 Reel 13” Q1/T1 *standard mark SMD 2500 Tamb= 40 C to +85C
NXP Semiconductors PCA9672
Remote 8-bit I/O expander for Fm+ I2 C-bus with interrupt and reset
5. Block diagramNXP Semiconductors PCA9672
Remote 8-bit I/O expander for Fm+ I2 C-bus with interrupt and reset
6. Pinning information
6.1 Pinning
6.2 Pin description
Table 3. Pin descriptionAD0 1 15 address input 0
AD1 2 16 address input 1
RESET 3 1 reset input (active LOW) 4 2 quasi-bidirectional I/O0 5 3 quasi-bidirectional I/O1 6 4 quasi-bidirectional I/O2 7 5 quasi-bidirectional I/O3
VSS 86[1] supply ground 9 7 quasi-bidirectional I/O4 10 8 quasi-bidirectional I/O5
NXP Semiconductors PCA9672
Remote 8-bit I/O expander for Fm+ I2 C-bus with interrupt and reset[1] HVQFN16 package die supply ground is connected to both the VSS pin and the exposed center pad. The
VSS pin must be connected to supply ground for 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.
7. Functional descriptionRefer to Figure 1 “Block diagram of PCA9672”.
7.1 Device addressFollowing a START condition, the bus master must send the address of the slave it is
accessing and the operation it wants to perform (read or write). The address format of the
PCA9672 is shown in Figure 6. Slave address pins AD1 and AD0 are used to choose one
of 16 slave addresses. These devices can monitor the change in SDA or SCL in addition
to the static levels of VDD or VSS to decode four states allowing a larger address range. To
conserve power, no internal pull-up resistors are incorporated on AD1 or AD0, so they
must be externally connected to VDD, VSS directly or through resistors, or to SCL or SDA
directly. Address values depending on AD1 and AD0 can be found in T able 4 “PCA9672
address map”.
Remark: When using the PCA9672 reserved I2 C-bus addresses must be used with
caution since they can interfere with:
“reserved for future use” I2 C-bus addresses (0000 011, 1111 101, 1111 110, 1111 111)
slave devices that use the 10-bit addressing scheme (1111 0xx)
High speed mode (Hs-mode) master code (0000 1xx)
The last bit of the first byte defines the operation to be performed. When set to logic 1 a
read is selected, while a logic 0 selects a write operation.
When AD1 and AD0 are held to VDD or VSS, the same address as the PCF8574 or the
newer PCA8574 with A2 held to VSS is applied. 12 10 quasi-bidirectional I/O7
INT 13 11 interrupt output (active LOW)
SCL 14 12 serial clock line
SDA 15 13 serial data line
VDD 16 14 supply voltage
Table 3. Pin description …continued
