Resumen del contenido incluido en la página 1
INTEGRATED CIRCUITS
PTN3501
Maintenance and control device
Product specification 2001 Jan 17
Supersedes data of 2000 Nov 22
Resumen del contenido incluido en la página 2
Philips Semiconductors Product specification Maintenance and control device PTN3501 FEATURES PIN CONFIGURATION 2 • I C to parallel port expander 2 • Internal 256x8 E PROM 1 20 A0 V DD • Self timed write cycle (5 ms typ.) 2 19 A1 SDA • 16 byte page write operation A2 3 18 SCL • Controlled pull-up on address lines P0 4 17 WC PTN3501 • Low voltage V range of +2.5 V to +3.6 V P1 5 16 P7 CC • 5 V – tolerant I/Os P2 6 15 P6 • Low standby current (< 60 μA ) P3 7 14 P5 • Power on Reset 8 13 P4 INT • Sup
Resumen del contenido incluido en la página 3
Philips Semiconductors Product specification Maintenance and control device PTN3501 2 CHARACTERISTICS OF THE I C-BUS 2 The I C-bus is for 2-way, 2-line communication between different ICs Start and stop conditions or modules. The two lines are a serial data line (SDA) and a serial Both data and clock lines remain HIGH when the bus is not busy. A clock line (SCL). Both lines must be connected to a positive supply HIGH-to-LOW transition of the data line, while the clock is HIGH is via a pull-up re
Resumen del contenido incluido en la página 4
Philips Semiconductors Product specification Maintenance and control device PTN3501 out of the slave transmitter. The device that acknowledges has to Acknowledge (see Figure 6) pull down the SDA line during the acknowledge clock pulse, so that The number of data bytes transferred between the start and the stop the SDA line is stable LOW during the HIGH period of the conditions from transmitter to receiver is not limited. Each byte of acknowledge related clock pulse, set–up and hold times must be
Resumen del contenido incluido en la página 5
Philips Semiconductors Product specification Maintenance and control device PTN3501 Addressing For addressing, see Figure 8. SLAVE ADDRESS SLAVE ADDRESS S 0 A5 A4 A3 A2 A1 A0 0 A S 1 A5 A4 A3 A2 A1 A0 0 A a. b. (a) I/O EXPANDER (b) MEMORY SW00648 Figure 8. PTN3501 slave addresses Asynchronous Start Following any Start condition on the bus, a minimum of 9 SCL clock cycles must be completed before a Stop condition can be issued. The device does not support a Stop or a repeated Start condition dur
Resumen del contenido incluido en la página 6
Philips Semiconductors Product specification Maintenance and control device PTN3501 Interrupt (see Figs 11 and 12) • In the WRITE mode at the acknowledge bit after the The PTN3501 provides an open drain output (INT) which can be fed HIGH–to–LOW transition of the SCL signal to a corresponding input of the microcontroller. This gives these • Returning of the port data to its original setting. A second port chips a type of master function which can initiate an action state change will require an SC
Resumen del contenido incluido en la página 7
Philips Semiconductors Product specification Maintenance and control device PTN3501 Quasi-bidirectional I/Os (see Figure 13) A quasi-bidirectional I/O can be used as an input or output without the use of a control signal for data direction. At power-on the I/Os are HIGH. In this mode, only a current source to V is active. An additional strong pull-up to V allows fast rising edges into heavily loaded outputs. DD DD These devices turn on when an output is written HIGH, and are switched off by the
Resumen del contenido incluido en la página 8
Philips Semiconductors Product specification Maintenance and control device PTN3501 the master issues the stop condition, initiating the internal write cycle MEMORY OPERATIONS to the non–volatile memory. Only write and read operations to the Write operations quasi–bidirectional I/Os are allowed during the internal write cycle. Write operations require an additional address field to indicate the Page Write (see Figure 15) memory address location to be written. The address field is eight A page wr
Resumen del contenido incluido en la página 9
Philips Semiconductors Product specification Maintenance and control device PTN3501 The master must perform a byte write to the address location to be Read operations read, but instead of transmitting the data after receiving the PTN3501 read operations are initiated in an identical manner to acknowledge from the PTN3501 the master reissues the start write operations with the exception that the memory slave address’ condition and memory slave address with the R/W bit set to one. R/W bit is set t
Resumen del contenido incluido en la página 10
Philips Semiconductors Product specification Maintenance and control device PTN3501 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. SYMBOL PARAMETER MIN MAX UNIT V Supply Voltage –0.5 4.0 V CC V Input Voltage V – 0.5 5.5 V I SS I DC Input Current –20 20 mA I I DC Output Current –25 25 mA O I Supply Current –100 100 mA DD I Supply Current –100 100 mA SS P Total Power Dissip
Resumen del contenido incluido en la página 11
Philips Semiconductors Product specification Maintenance and control device PTN3501 2 I C-BUS TIMING CHARACTERISTICS SYMBOL PARAMETER MIN. TYP. MAX. UNIT 2 I C-bus timing (see Figure 19; Note 1) f SCL clock frequency – – 400 kHz SCL t tolerable spike width on bus – – 50 ns SW t bus free time 1.3 – – μs BUF t START condition set–up time 0.6 – – μs SU;STA t START condition hold time 0.6 – – μs HD;STA t SCL and SDA rise time – – 0.3 μs r t SCL and SDA fall time – – 0.3 μs f t data set–up time 250 –
Resumen del contenido incluido en la página 12
Philips Semiconductors Product specification Maintenance and control device PTN3501 POWER-UP TIMING SYMBOL PARAMETER MAX. UNIT 1 t Power-up to Read Operation 1 ms PUR 1 t Power-up to Write Operation 5 ms PUW NOTE: 1. t and t are the delays required from the time V is stable until the specified operation can be initiated. These parameters are PUR PUW CC guaranteed by design. WRITE CYCLE LIMITS (5) SYMBOL PARAMETER MIN. TYP. MAX. UNIT 1 t Write Cycle Time – 5 10 ms WR NOTE: 1. t is the maximum tim
Resumen del contenido incluido en la página 13
Philips Semiconductors Product specification Maintenance and control device PTN3501 SOLDERING seconds depending on heating method. Typical reflow temperatures Introduction range from 215 to 250°C. There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted Preheating is necessary to dry the paste and evaporate the binding components are mixed on one printed-circuit board. However, wave agent. Preheating duration: 45 minu
Resumen del contenido incluido en la página 14
Philips Semiconductors Product specification Maintenance and control device PTN3501 TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1 2001 Jan 17 14
Resumen del contenido incluido en la página 15
Philips Semiconductors Product specification Maintenance and control device PTN3501 Data sheet status [1] Data sheet Product Definition status status Objective Development This data sheet contains the design target or goal specifications for product development. specification Specification may change in any manner without notice. Preliminary Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date. specification Philips Semiconductors res
