CAT5411 Dual Digitally Programmable Potentiometers (DPP™) with 64 Taps and SPI Interface FEATURES DESCRIPTION Two linear-taper digitally programmable potentiometers The CAT5411 is two Digitally Programmable Potentiometers (DPPs™) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series of 63 resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 6-bit control register (WCR) independently controls the wiper tap switches for each DPP. Associated with each wiper control register are four 6-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a SPI serial bus. On power-up, the contents of the first data register (DR0) for each of the two potentiometers is automatically loaded into its respective wiper control register. 64 resistor taps per potentiometer End to end resistance 2.5kΩ, 10kΩ, 50kΩ or 100kΩ Potentiometer control and memory access via SPI interface: Mode (0, 0) and (1, 1) Low wiper resistance, typically 80 Nonvolatile memory storage for up to four wiper settings for each potentiometer Automatic recall of saved wiper settings at power up 2.5 to 6.0 volt operation Standby current less than 1µA 24-lead SOIC and 24-lead TSSOP Industrial temperature ranges The CAT5411 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications. PIN CONFIGURATION FUNCTIONAL DIAGRAM SOIC (W) (top view) TSSOP (Y) (top view) RH0 VCC 1 24 NC SI 1 24 ¯¯¯ WP RL0 2 23 NC A1 2 23 ¯¯¯ CS RH0 3 22 NC RL1 3 22 RW0 RW0 4 21 NC RH1 4 21 RH0 ¯¯¯ CS 5 20 A0 RW1 5 20 RL0 ¯¯¯ WP 6 SO GND 6 7 ¯¯¯¯¯ HOLD NC 7 CAT 19 5411 18 VCC SI CAT 19 5411 18 A1 8 17 SCK NC 8 17 NC RL1 9 16 NC NC 9 16 NC RH1 10 15 NC NC 10 15 NC RW1 11 14 NC SCK 11 14 A0 NC ¯¯¯¯¯ HOLD 12 13 SO GND 12 13 CS SCK SI SO SPI BUS INTERFACE RH1 WIPER CONTROL REGISTERS RW0 RW1 WP A0 A1 NC CONTROL LOGIC NONVOLATILE DATA REGISTERS RL0 RL1 For Ordering Information details, see page 15. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 Doc. No. MD-2114 Rev. I CAT5411 PIN DESCRIPTIONS SI: Serial Input Pin SOIC Pin TSSOP Name 1 19 VCC 2 20 RL0 SO: Serial Output SO is the serial data output pin. This pin is used to transfer data out of the CAT5411. During a read cycle, data is shifted out on the falling edge of the serial clock. 3 21 RH0 4 22 RW0 5 23 SCK: Serial Clock SCK is the serial clock pin. This pin is used to synchronize the communication between the microcontroller and the CAT5411. Opcodes, byte addresses or data present on the SI pin are latched on the rising edge of the SCK. Data on the SO pin is updated on the falling edge of the SCK. 6 24 ¯¯¯ CS ¯¯¯ WP A0, A1: Device Address Inputs These inputs set the device address when addressing multiple devices. A total of four devices can be addressed on a single bus. A match in the slave address must be made with the address input in order to initiate communication with the CAT5411. SI is the serial data input pin. This pin is used to input all opcodes, byte addresses and data to be written to the CAT5411. Input data is latched on the rising edge of the serial clock. RH, RL: Resistor End Points The four sets of RH and RL pins are equivalent to the terminal connections on a mechanical potentiometer. RW: Wiper The four RW pins are equivalent to the wiper terminal of a mechanical potentiometer. ¯¯¯: CS Chip Select CAT5251 and ¯¯¯ CS high disables the CAT5411. ¯¯¯ CS high takes the SO output pin to high impedance and forces the devices into a Standby mode (unless an internal write operation is underway). The CAT5411 draws ZERO current in the Standby mode. A high to low transition on ¯¯¯ CS is required prior to any sequence being initiated. A low to high transition on ¯¯¯ CS after a valid write sequence is what initiates an internal write cycle. Supply Voltage Low Reference Terminal for Potentiometer 0 High Reference Terminal for Potentiometer 0 Wiper Terminal for Potentiometer 0 Chip Select Write Protection 7 1 SI Serial Input 8 2 A1 Device Address 9 3 RL1 10 4 RH1 11 5 RW1 Wiper Terminal for Potentiometer 1 12 6 GND Ground 13 7 NC No Connect 14 8 NC No Connect 15 9 NC No Connect 16 10 NC No Connect 17 11 SCK 18 12 ¯¯¯¯¯ HOLD 19 13 SO Serial Data Output 20 14 A0 Device Address, LSB 21 15 NC No Connect 22 16 NC No Connect 23 17 NC No Connect 24 18 NC No Connect Low Reference Terminal for Potentiometer 1 High Reference Terminal for Potentiometer 1 Bus Serial Clock Hold ¯¯¯¯¯ : Hold HOLD ¯¯¯¯¯ pin is used to pause transmission to the The HOLD CAT5411 while in the middle of a serial sequence without having to re-transmit entire sequence at a later time. To ¯¯¯¯¯ must be brought low while SCK is low. The pause, HOLD SO pin is in a high impedance state during the time the part is paused, and transitions on the SI pins will be ignored. To ¯¯¯¯¯ is brought high, while SCK resume communication, HOLD ¯¯¯¯¯ is low. (HOLD should be held high any time this function is ¯¯¯¯¯ may be tied high directly to VCC or not being used.) HOLD tied to VCC through a resistor. ¯¯¯ WP: Write Protect ¯¯¯ WP is the Write Protect pin. The Write Protect pin will allow normal read/write operations when held high. When ¯¯¯ WP is tied low, all non-volatile write operations to the Data registers are inhibited (change of wiper control register is allowed). ¯¯¯ WP going low while ¯¯¯ CS is still low will interrupt a write to the registers. If the internal write cycle has already been initiated, ¯¯¯ WP going low will have no effect on any write operation. Doc. No. MD-2114 Rev. I Function 2 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 DEVICE OPERATION SERIAL BUS PROTOCOL The CAT5411 is two resistor arrays integrated with SPI serial interface logic, four 6-bit wiper control registers and eight 6-bit, non-volatile memory data registers. Each resistor array contains 63 separate resistive elements connected in series. The physical ends of each array are equivalent to the fixed terminals of a mechanical potentiometer (RH and RL). RH and RL are symmetrical and may be interchanged. The tap positions between and at the ends of the series resistors are connected to the output wiper terminals (RW) by a CMOS transistor switch. Only one tap point for each potentiometer is connected to its wiper terminal at a time and is determined by the value of the wiper control register. Data can be read or written to the wiper control registers or the nonvolatile memory data registers via the SPI bus. Additional instructions allow data to be transferred between the wiper control registers and each respective potentiometer's non-volatile data registers. Also, the device can be instructed to operate in an "increment/decrement" mode. The CAT5041 supports the SPI bus data transmission protocol. The synchronous Serial Peripheral Interface (SPI) helps the CAT5411 to interface directly with many of today's popular microcontrollers. The CAT5041 contains an 8-bit instruction register. The instruction set and the operation codes are detailed in the instruction set table 3. After the device is selected with ¯¯¯ CS going low the first byte will be received. The part is accessed via the SI pin, with data being clocked in on the rising edge of SCK. The first byte contains one of the six op-codes that define the operation to be performed. RELIABILITY CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter Reference Test Method NEND (1) Endurance MIL-STD-883, Test Method 1033 1,000,000 Cycles/Byte TDR (1) Data Retention MIL-STD-883, Test Method 1008 100 Years ESD Susceptibility MIL-STD-883, Test Method 3015 2000 Volts Latch-Up JEDEC Standard 17 100 mA VZAP(1) ILTH(1) Min Typ Max Units Notes: (1) This parameter is tested initially and after a design or process change that affects the parameter. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 3 Doc. No. MD-2114 Rev. I CAT5411 ABSOLUTE MAXIMUM RATINGS(1) RECOMMENDED OPERATING CONDITIONS Parameters Temperature Under Bias Storage Temperature Range Voltage to any Pins with Respect to VSS (2) (3) Ratings -55 to +125 Units ºC -65 to +150 ºC -2.0 to VCC +2.0 V VCC with Respect to GND -2.0 to +7.0 V Package Power Dissipation Capability (TA = 25°C) 1.0 W Lead Soldering Temperature (10s) 300 ºC Wiper Current ±12 mA Parameters VCC Industrial Temperature Ratings +2.5 to 6.0 -40 to +85 Units V ºC Notes: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. (2) The minimum DC input voltage is –0.5V. During transitions, inputs may undershoot to –2.0V for periods of less than 20 ns. Maximum DC voltage on output pins is VCC +0.5V, which may overshoot to VCC +2.0V for periods of less than 20 ns. (3) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to VCC +1V. POTENTIOMETER CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter Test Conditions Min Typ Max Units RPOT Potentiometer Resistance (-00) 100 kΩ RPOT Potentiometer Resistance (-50) 50 kΩ RPOT Potentiometer Resistance (-10) 10 kΩ RPOT Potentiometer Resistance (-2.5) 2.5 kΩ Potentiometer Resistance Tolerance RPOT Matching Power Rating 25°C, each pot IW Wiper Current RW Wiper Resistance IW = +3mA @ VCC = 3V RW Wiper Resistance IW = +3mA @ VCC = 5V Voltage on any RH or RL Pin VSS = 0V Noise (1) VTERM VN GND TCRPOT TCRATIO CH/CL/CW fc % 1 % 50 mW +6 mA 300 Ω 150 Ω VCC V nV/√Hz Resolution Absolute Linearity 80 +20 1.6 (2) RW(n)(actual)-R(n)(expected) Relative Linearity (3) RW(n+1)-[RW(n)+LSB](5) Temperature Coefficient of RPOT (1) Ratiometric Temp. Coefficient (1) Potentiometer Capacitances (1) Frequency Response (5) % +1 LSB (4) +0.2 LSB (4) +300 ppm/°C 20 (1) RPOT = 50kΩ ppm/°C 10/10/25 pF 0.4 MHz Notes: (1) This parameter is tested initially and after a design or process change that affects the parameter. (2) Absolute linearity is utilitzed to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a potentiometer. (3) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer. It is a measure of the error in step size. (4) LSB = RTOT / 63 or (RH - RL) / 63, single pot (5) n = 0, 1, 2, ..., 63 Doc. No. MD-2114 Rev. I 4 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 D.C. OPERATING CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter ICC Power Supply Current ISB Standby Current (VCC = 5.0V) Test Conditions fSCK = 2MHz, SO Open Inputs = GND VIN = GND or VCC; SO Open Min ILI Input Leakage Current VIN = GND to VCC 10 µA ILO Output Leakage Current VOUT = GND to VCC 10 µA VIL Input Low Voltage -1 VCC x 0.3 V VIH Input High Voltage VCC x 0.7 VCC + 1.0 V VOL1 Output Low Voltage (VCC = 3.0V) 0.4 V IOL = 3 mA Max Units 1 mA 1 µA PIN CAPACITANCE (1) Applicable over recommended operating range from TA = 25˚C, f = 1.0 MHz, VCC = +5.0V (unless otherwise noted). Symbol COUT CIN Test Conditions Min Typ Max Units Conditions Output Capacitance (SO) 8 pF VOUT = 0V ¯¯¯¯¯) Input Capacitance (¯¯¯ CS , SCK, SI, ¯¯¯ WP, HOLD 6 pF VIN = 0V Min Typ Max Units POWER UP TIMING (1) Over recommended operating conditions unless otherwise stated. Symbol tPUR Parameter (2) Power-up to Read Operation 1 ms (2) Power-up to Write Operation 1 ms tPUW Notes: (1) This parameter is tested initially and after a design or process change that affects the parameter. (2) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 5 Doc. No. MD-2114 Rev. I CAT5411 ELECTRICAL CHARACTERISTICS Over recommended operating conditions unless otherwise stated. Symbol Parameter Min Typ Max Units tSU Data Setup Time 50 ns tH Data Hold Time 50 ns tWH SCK High Time 125 ns tWL SCK Low Time 125 ns fSCK Clock Frequency DC tLZ 3 MHz ¯¯¯¯¯ to Output Low Z HOLD 50 ns tRI(1) Input Rise Time 2 µs tFI(1) Input Fall Time 2 µs tHD ¯¯¯¯¯ Setup Time HOLD 100 ns tCD ¯¯¯¯¯ Hold Time HOLD 100 ns tWC Write Cycle Time 5 ms 250 ns tV Output Valid from Clock Low tHO Output Hold Time tDIS Output Disable Time 250 ns tHZ ¯¯¯¯¯ to Output High Z HOLD 100 ns tCS ¯¯¯ CS High Time 250 ns tCSS ¯¯¯ CS Setup Time 250 ns tCSH ¯¯¯ CS Hold Time 250 ns 0 Test Conditions CL = 50pF ns POTENTIOMETER AC CHARACTERISTICS Symbol Parameter Max Units tWRL Wiper response time after instruction issued (all load instructions) 10 µs tWRID Wiper response time from an active SCL/SCK edge (Increment/decrement instruction) 5 µs Note: (1) This parameter is tested initially and after a design or process change that affects the parameter. Doc. No. MD-2114 Rev. I 6 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 Figure 1: Synchronous Data Timing tCS VIH CS VIL tCSH tCSS SCK VIH tWH VIL tH tSU VIH tWL VALID IN SI VIL tRI tFI tV SO VOH tHO tDIS HI-Z HI-Z VOL ¯¯¯¯¯ Timing Figure 2: HOLD CS tCD tCD SCK tHD tHD HOLD tHZ HIGH IMPEDANCE SO tLZ © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. MD-2114 Rev. I CAT5411 INSTRUCTION AND REGISTER DESCRIPTION INSTRUCTION BYTE The next byte sent to the CAT5411 contains the instruction and register pointer information. The four most significant bits used provide the instruction opcode I [3:0]. The R1 and R0 bits point to one of the four data registers of each associated potentiometer. The least two significant bits point to one of two Wiper Control Registers. The format is shown in Table 2. DEVICE TYPE / ADDRESS BYTE The first byte sent to the CAT5411 from the master/ processor is called the Device Address Byte. The most significant four bits of the Device Type address are a device type identifier. These bits for the CAT5411 are fixed at 0101[B] (refer to Table 1). Data Register Selection The two least significant bits in the slave address byte, A1 - A0, are the internal slave address and must match the physical device address which is defined by the state of the A1 - A0 input pins for the CAT5411 to successfully continue the command sequence. Only the device which slave address matches the incoming device address sent by the master executes the instruction. The A1 - A0 inputs can be actively driven by CMOS input signals or tied to VCC or VSS. The remaining two bits in the device address byte must be set to 0. Data Register Selected R1 R0 DR0 0 0 DR1 0 1 DR2 1 0 DR3 1 1 Table 1. Identification Byte Format 0 1 0 Device Type Identifier (MSB) Device Type Identifier ID3 0 ID2 1 ID1 0 Slave Address ID0 1 0 0 A1 (MSB) A0 (LSB) Table 2. Instruction Byte Format Instruction Opcode I3 (MSB) I2 Data Register Selection I1 I0 R1 WCR/Pot Selection R0 P1 P0 (LSB) Figure 3. Potentiometer Timing (for All Load Instructions) CS SCK SI ••• MSB ••• tWRL LSB VW/RW SO Doc. No. MD-2114 Rev. I High Impedance 8 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 WIPER CONTROL AND DATA REGISTERS Wiper Control Register (WCR) The CAT5411 contains two 6-bit Wiper Control Registers, one for each potentiometer. The Wiper Control Register output is decoded to select one of 64 switches along its resistor array. The contents of the WCR can be altered in four ways: it may be written by the host via Write Wiper Control Register instruction; it may be written by transferring the contents of one of four associated Data Registers via the XFR Data Register instruction, it can be modified one step at a time by the Increment/decrement instruction (see Instruction section for more details). Finally, it is loaded with the content of its data register zero (DR0) upon power-up. Write in Process The contents of the Data Registers are saved to nonvolatile memory when the ¯¯¯ CS input goes HIGH after a write sequence is received. The status of the internal write cycle can be monitored by issuing a Read Status command to read the Write in Process (WIP) bit. The Wiper Control Register is a volatile register that loses its contents when the CAT5411 is powereddown. Although the register is automatically loaded with the value in DR0 upon power-up, this may be different from the value present at power-down. — Write Wiper Control Register – change current wiper position in the WCR of the selected potentiometer INSTRUCTIONS Four of the ten instructions are three bytes in length. These instructions are: — Read Wiper Control Register – read the current wiper position of the selected potentiometer in the WCR — Read Data Register – read the contents of the selected Data Register Data Registers (DR) Each potentiometer has four 6-bit non-volatile Data Registers. These can be read or written directly by the host. Data can also be transferred between any of the four Data Registers and the associated Wiper Control Register. Any data changes in one of the Data Registers is a non-volatile operation and will take a maximum of 5ms. — Write Data Register – write a new value to the selected Data Register — Read Status – Read the status of the WIP bit which when set to "1" signifies a write cycle is in progress. Table 3. Instruction Set Note: 1/0 = data is one or zero Instruction Set Instruction Operations I3 I2 I1 I0 R1 R0 0 WCR0/ P0 Read Wiper Control Register 1 0 0 1 0 0 0 1/0 Write Wiper Control Register 1 0 1 0 0 0 0 1/0 Read Data Register 1 0 1 1 1/0 1/0 0 1/0 Write Data Register 1 1 0 0 1/0 1/0 0 1/0 XFR Data Register to Wiper Control Register 1 1 0 1 1/0 1/0 0 1/0 XFR Wiper Control Register to Data Register 1 1 1 0 1/0 1/0 0 1/0 Global XFR Data Registers to Wiper Control Registers 0 0 0 1 1/0 1/0 0 0 Global XFR Wiper Control Registers to Data Register 1 0 0 0 1/0 1/0 0 0 0 0 1 0 0 0 0 1/0 Enable Increment/decrement of the Control Latch pointed to by P1-P0 0 1 0 1 0 0 0 1 Read WIP bit to check internal write cycle status Increment/Decrement Wiper Control Register Read Status © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 9 Read the contents of the Wiper Control Register pointed to by P1-P0 Write new value to the Wiper Control Register pointed to by P1-P0 Read the contents of the Data Register pointed to by P1-P0 and R1-R0 Write new value to the Data Register pointed to by P1-P0 and R1-R0 Transfer the contents of the Data Register pointed to by P1-P0 and R1-R0 to its associated Wiper Control Register Transfer the contents of the Wiper Control Register pointed to by P1-P0 to the Data Register pointed to by R1-R0 Transfer the contents of the Data Registers pointed to by R1-R0 of all four pots to their respective Wiper Control Registers Transfer the contents of both Wiper Control Registers to their respective data Registers pointed to by R1-R0 of all four pots Doc. No. MD-2114 Rev. I CAT5411 The basic sequence of the three byte instructions is illustrated in Figure 5. These three-byte instructions exchange data between the WCR and one of the Data Registers. The WCR controls the position of the wiper. The response of the wiper to this action will be delayed by tWRL. A transfer from the WCR (current wiper position), to a Data Register is a write to nonvolatile memory and takes a minimum of tWR to complete. The transfer can occur between one of the four potentiometers and one of its associated registers; or the transfer can occur between all potentiometers and one associated register. — Global XFR Data Register to Wiper Control Register This transfers the contents of all specified Data Registers to the associated Wiper Control Registers. — Global XFR Wiper Counter Register to Data Register This transfers the contents of all Wiper Control Registers to the specified associated Data Registers. INCREMENT/DECREMENT COMMAND The final command is Increment/Decrement (Figure 6 and 7). The Increment/Decrement command is different from the other commands. Once the command is issued the master can clock the selected wiper up and/or down in one segment steps; thereby providing a fine tuning capability to the host. For each SCK clock pulse (tHIGH) while SI is HIGH, the selected wiper will move one resistor segment towards the RH terminal. Similarly, for each SCK clock pulse while SI is LOW, the selected wiper will move one resistor segment towards the RL terminal. Four instructions require a two-byte sequence to complete, as illustrated in Figure 4. These instructions transfer data between the host/processor and the CAT5411; either between the host and one of the data registers or directly between the host and the Wiper Control Register. These instructions are: — XFR Data Register to Wiper Control Register This transfers the contents of one specified Data Register to the associated Wiper Control Register. — XFR Wiper Control Register to Data Register This transfers the contents of the specified Wiper Control Register to the specified associated Data Register. See Instructions format for more detail. Figure 4. Two-Byte Instruction Sequence SI 0 1 0 1 0 0 ID3 ID2 ID1 ID0 A3 A2 A1 A0 I3 Internal Address Device ID I2 I1 R1 R0 P1 P0 I0 Instruction Opcode Register Address Pot/WCR Address Figure 5. Three-Byte Instruction Sequence 0 SI 1 0 1 0 0 A2 ID3 ID2 ID1 ID0 A3 A1 A0 I3 Internal Address Device ID I2 I1 I0 R1 R0 P1 P0 Instruction Opcode D7 D6 D5 D4 D3 D2 D1 D0 Data Pot/WCR Register Address Address WCR[7:0] or Data Register D[7:0] Figure 6. Increment/Decrement Instruction Sequence SI 1 0 ID3 ID2 ID1 ID0 0 1 0 A3 Device ID Doc. No. MD-2114 Rev. I 0 A2 A1 A0 Internal Address I3 I2 I1 I0 Instruction Opcode 10 R1 R0 P1 P0 I N Pot/WCR C Data Register Address 1 Address I N C 2 I N C n D E C 1 D E C n © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 Figure 7. Increment/Decrement Timing Limits INC/DEC Command Issued tWRL SCK SI RW Voltage Out INSTRUCTION FORMAT Read Wiper Control Register (WCR) DEVICE ADDRESS INSTRUCTION DATA 0 1 0 1 0 0 A1 A0 1 0 0 1 0 0 0 P0 7 6 5 4 3 2 1 ¯¯¯ CS 0 0 Write Wiper Control Register (WCR) DEVICE ADDRESS INSTRUCTION DATA 0 1 0 1 0 0 A1 A0 1 0 1 0 0 0 0 P0 7 6 5 4 3 2 1 ¯¯¯ CS 0 0 Read Data Register (DR) DEVICE ADDRESS INSTRUCTION DATA 0 1 0 1 0 0 A1 A0 1 0 1 1 R1 R0 0 P0 7 6 5 4 3 2 1 ¯¯¯ CS Write Data Register (DR) DEVICE ADDRESS INSTRUCTION DATA 0 1 0 1 0 0 A1 A0 1 1 0 0 R1 R0 0 P0 7 6 5 4 3 2 1 ¯¯¯ CS Read Status (WIP) DEVICE ADDRESS INSTRUCTION 0 1 0 1 0 0 A1 A0 0 1 0 1 0 0 0 ¯¯¯ CS © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 11 1 0 0 0 0 DATA 7 6 5 4 3 2 1 W 0 0 I P ¯¯¯ CS ¯¯¯ CS ¯¯¯ CS ¯¯¯ CS High Voltage Write Cycle ¯¯¯ CS Doc. No. MD-2114 Rev. I CAT5411 INSTRUCTION FORMAT (CONTINUED) Global Transfer Data Register (DR) to Wiper Control Register (WCR) ¯¯¯ CS 0 DEVICE ADDRESS 1 0 1 0 0 A1 A0 0 0 INSTRUCTION 0 1 R1 R0 0 0 ¯¯¯ CS Global Transfer Wiper Control Register (WCR) to Data Register (DR) ¯¯¯ CS 0 1 DEVICE ADDRESS 0 1 0 0 A1 A0 1 0 INSTRUCTION 0 0 R1 R0 0 0 ¯¯¯ CS High Voltage Write Cycle ¯¯¯ CS High Voltage Write Cycle Transfer Wiper Control Register (WCR) to Data Register (DR) ¯¯¯ CS 0 DEVICE ADDRESS 1 0 1 0 0 A1 A0 1 1 INSTRUCTION 1 0 R1 R0 0 P0 Transfer Data Register (DR) to Wiper Control Register (WCR) ¯¯¯ CS 0 1 DEVICE ADDRESS 0 1 0 0 A1 A0 1 1 INSTRUCTION 0 1 R1 R0 0 P0 ¯¯¯ CS Increment (I)/Decrement (D) Wiper Control Register (WCR) ¯¯¯ CS 0 DEVICE ADDRESS 1 0 1 0 0 A1 A0 0 0 INSTRUCTION 1 0 0 0 0 DATA P0 I/D I/D I/D I/D ••• ¯¯¯ CS Note: (1) Any write or transfer to the Non-volatile Data Registers is followed by a high voltage cycle after ¯¯¯ CS goes high. Doc. No. MD-2114 Rev. I 12 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 PACKAGE OUTLINES SOIC 24-LEAD 300 mil (W) (1)(2) SYMBOL E1 E MIN e PIN#1 IDENTIFICATION MAX A 2.35 2.65 A1 0.10 0.30 A2 2.05 2.55 b 0.31 0.51 c 0.20 0.33 D 15.20 15.40 E 10.11 10.51 E1 7.34 e b NOM 7.60 1.27 BSC h 0.25 0.75 L 0.40 1.27 θ 0° 8° θ1 5° 15° TOP VIEW h D A2 A A1 SIDE VIEW h θ1 θ θ1 L c END VIEW For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-013. © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 13 Doc. No. MD-2114 Rev. I CAT5411 TSSOP 24-LEAD (Y) (1)(2) b SYMBOL MIN NOM A A1 E1 E MAX 1.20 0.05 0.15 A2 0.80 1.05 b 0.19 0.30 c 0.09 0.20 D 7.70 7.80 7.90 E 6.25 6.40 6.55 E1 4.30 4.40 4.50 e 0.65 BSC L 1.00 REF L1 0.50 θ1 0° 0.60 0.70 8° e TOP VIEW D c A2 A θ1 L1 A1 L SIDE VIEW END VIEW For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. Doc. No. MD-2114 Rev. I 14 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5411 EXAMPLE OF ORDERING INFORMATION(1) Prefix Device # CAT Suffix 5411 W I -10 Temperature Range I = Industrial (-40ºC to 85ºC) Company ID Product Number 5411 Resistance -25: 2.5kΩ -10: 10kΩ -50: 50kΩ -00: 100kΩ Package W: SOIC Y: TSSOP Ordering Part Number Resistor [kΩ] CAT5411WI-25 2.5 CAT5411WI-10 10 CAT5411WI-50 50 CAT5411WI-00 100 CAT5411YI-25 2.5 CAT5411YI-10 10 CAT5411YI-50 50 CAT5411YI-00 100 – T1 Tape & Reel T: Tape & Reel 1: 1000/Reel - SOIC 2: 2000/Reel - TSSOP Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is Matte-Tin. (3) The device used in the above example is a CAT5411WI-10-T1 (SOIC, Industrial Temperature, 10kΩ, Tape & Reel, 1000). © Catalyst Semiconductor, Inc. Characteristics subject to change without notice 15 Doc. No. MD-2114 Rev. I REVISION HISTORY Date Rev. Reason 04/01/04 G Eliminate data sheet designation Update Features Update Description Update Pin Description Update Absolute Maximum Ratings Update Recommended Operating Conditions Update Potentiometer Characteristics Update Reliability Characteristics Update Ordering Information 05/22/07 H 10/31/07 I Update Package Outline Drawings Update Example of Ordering Information Add MD- to document number Update Package Outline Drawings Update Example of Ordering Information Copyrights, Trademarks and Patents © Catalyst Semiconductor, Inc. Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Adaptive Analog™, Beyond Memory™, DPP™, EZDim™, LDD™, MiniPot™, Quad-Mode™ and Quantum Charge Programmable™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete. Catalyst Semiconductor, Inc. Corporate Headquarters 2975 Stender Way Santa Clara, CA 95054 Phone: 408.542.1000 Fax: 408.542.1200 1Hwww.catsemi.com Document No: MD-2114 Revision: I Issue date: 10/31/07