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PCA9665
Datasheet
General description
The PCA9665 serves as an interface between most standard parallel-bus microcontrollers/microprocessors and the serial I2C-bus and allows the parallel bus system to communicate bidirectionally with the I2C-bus. The PCA9665 can operate as a master or a slave and can be a transmitter or receiver. Communication with the I2C-bus is carried out on a Byte or Buffered mode using interrupt or polled handshake. The PCA9665 controls all the I2C-bus specific sequences, protocol, arbitration and timing with no external timing element required.
The PCA9665 has the same footprint as the PCA9564 with additional features:
- 1 MHz transmission speeds
- Up to 25 mA drive capability on SCL/SDA
- 68-byte buffer
- I2C-bus General Call
- Software reset on the parallel bus
Features
- Parallel-bus to I2C-bus protocol converter and interface
- Both master and slave functions
- Multi-master capability
- Internal oscillator trimmed to 15 pct accuracy reduces external components
- 1 Mbit/s and up to 25 mA SCL/SDA IOL (Fast-mode Plus (Fm+)) capability
- I2C-bus General Call capability
- Software reset on parallel bus
- 68-byte data buffer
- Operating supply voltage: 2.3 V to 3.6 V
- 5 V tolerant I/Os
- Standard-mode and Fast-mode I2C-bus capable and compatible with SMBus
- ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
- Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
- Packages offered: DIP20, SO20, TSSOP20, HVQFN20
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA9665BS | PCA9665BS-T | 9352 792 41118 | Volume production | SOT662-1
(HVQFN20) | Reel Pack, SMD, 13" | Standard Marking | PCA9665BS
| |
| PCA9665D | PCA9665D | 9352 792 42112 | Volume production | SOT163-1
(SO20) | Tube | Standard Marking | PCA9665D
| Always Pb-free |
| PCA9665D | PCA9665D-T | 9352 792 42118 | Volume production | SOT163-1
(SO20) | Tape reel smd | Standard Marking | PCA9665D
| Always Pb-free |
| PCA9665N | PCA9665N | 9352 792 43112 | Volume production | SOT146-1
(DIP20) | Tube | Standard Marking | PCA9665N
| Always Pb-free |
| PCA9665PW | PCA9665PW | 9352 792 44112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | PCA9665PW
| Always Pb-free |
| PCA9665PW | PCA9665PW-T | 9352 792 44118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking | PCA9665PW
| Always Pb-free |
Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCA9665BS | 9352 792 41118 | Order samples | ||||||
| PCA9665D | 9352 792 42112 | Order samples | ||||||
| PCA9665D | 9352 792 42118 | NA | DIGI-KEY CORPORATION | 3,714 | 6/29/2008 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 2,000 | 6/29/2008 | Buy online | ||||
| PCA9665N | 9352 792 43112 | NA | DIGI-KEY CORPORATION | 611 | 6/29/2008 | Buy online | Order samples | |
| PCA9665PW | 9352 792 44112 | not available | ||||||
| PCA9665PW | 9352 792 44118 | NA | DIGI-KEY CORPORATION | 2,500 | 6/29/2008 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 1,851 | 6/29/2008 | Buy online |
Applications
- Add I2C-bus port to controllers/processors that do not have one
- Add additional I2C-bus ports to controllers/processors that need multiple I2C-bus ports
- Converts 8 bits of parallel data to serial data stream to prevent having to run a large number of traces across the entire printed-circuit board
Related applications
LCD display - discretes focus
PDA - discretes focus
Motherboard components
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Intelligent washing machine
Technical documents
Application Notes
Support Documents
75011212;
I2C 2002-1A Evaluation Board Kit (01-Mar-03)
UM10204_3;
I2C-bus specification and user manual (26-Jun-07)
Parametrics/similar products
| Type number | Package | INTERRUPT | POWER-ON RESET | Operating temp.(Cel) | I²C-bus interface | Details | parallel interface | I²C-bus(kHz) | Operating voltage(VDC) | # of Addresses |
|---|---|---|---|---|---|---|---|---|---|---|
| PCA9665BS | SOT662-1
(HVQFN20) | 0-1 | Yes | -40~85 | Fast Mode Plus 30 mA SCL/SDA outputs for 4000 pF bus | Internal trimmed 28.5 MHz oscillator | yes | 1000 | 2.3~3.6 tolerant to 5.5 | 128 |
| PCA9665D | SOT163-1
(SO20) | 0-1 | Yes | -40~85 | Fast Mode Plus 30 mA SCL/SDA outputs for 4000 pF bus | Internal trimmed 28.5 MHz oscillator | yes | 1000 | 2.3~3.6 tolerant to 5.5 | 128 |
| PCA9665N | SOT146-1
(DIP20) | 0-1 | Yes | -40~85 | Fast Mode Plus 30 mA SCL/SDA outputs for 4000 pF bus | Internal trimmed 28.5 MHz oscillator | yes | 1000 | 2.3~3.6 tolerant to 5.5 | 128 |
| PCA9665PW | SOT360-1
(TSSOP20) | 0-1 | Yes | -40~85 | Fast Mode Plus 30 mA SCL/SDA outputs for 4000 pF bus | Internal trimmed 28.5 MHz oscillator | yes | 1000 | 2.3~3.6 tolerant to 5.5 | 128 |
Similar products
PCA9665 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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