W78C32C/W78C032C DATA SHEET 8-BIT MICROCONTROLLER Table of Contents1. GENERAL DESCRIPTION ......................................................................................................... 2 2. FEATURES ................................................................................................................................. 2 3. PIN CONFIGURATIONS ............................................................................................................ 3 4. PIN DESCRIPTION..................................................................................................................... 4 5. FUNCTIONAL DESCRIPTION ................................................................................................... 6 5.1 TIMERS 0, 1, AND 2....................................................................................................... 6 5.2 CLOCK............................................................................................................................ 6 5.2.1 5.2.2 5.3 POWER MANAGEMENT ............................................................................................... 6 5.3.1 5.3.2 5.3.3 6. 8. 9. 10. IDLE MODE......................................................................................................................6 POWER-DOWN MODE....................................................................................................7 RESET .............................................................................................................................7 ELECTRICAL CHARACTERISTICS........................................................................................... 8 6.1 ABSOLUTE MAXIMUM RATINGS ................................................................................. 8 6.2 D.C. CHARACTERISTICS.............................................................................................. 8 6.3 A.C. CHARACTERISTICS.............................................................................................. 9 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 7. CRYSTAL OSCILLATOR .................................................................................................6 EXTERNAL CLOCK .........................................................................................................6 CLOCK INPUT WAVEFORM ...........................................................................................9 PROGRAM FETCH CYCLE ...........................................................................................10 DATA READ CYCLE ......................................................................................................10 DATA WRITE CYCLE ....................................................................................................11 PORT ACCESS CYCLE.................................................................................................11 TIMING waveformS................................................................................................................... 12 7.1 PROGRAM FETCH CYCLE ......................................................................................... 12 7.2 DATA READ CYCLE .................................................................................................... 12 7.3 DATA WRITE CYCLE................................................................................................... 13 7.4 PORT ACCESS CYCLE ............................................................................................... 13 TYPICAL APPLICATION CIRCUIT........................................................................................... 14 8.1 USING EXTERNAL PROGRAM MEMORY AND CRYSTAL ....................................... 14 8.2 EXPANDED EXTERNAL DATA MEMORY AND OSCILLATOR ................................. 15 PACKAGE DIMENSIONS ......................................................................................................... 16 9.1 40-PIN DIP.................................................................................................................... 16 9.2 44-PIN PLCC ................................................................................................................ 16 9.3 44-PIN QFP .................................................................................................................. 17 REVISION HISTORY ................................................................................................................ 18 -1- Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 1. GENERAL DESCRIPTION The W78C032C microcontroller supplies a wider frequency range than most 8-bit microcontrollers on the market. It is compatible with the industry standard 80C32 microcontroller series. The W78C032C contains four 8-bit bidirectional parallel ports, three 16-bit timer/counters, and a serial port. These peripherals are supported by a six-source, two-level interrupt capability. There are 256 bytes of RAM, and the device supports ROMless operation for application programs. The W78C032C microcontroller has two power reduction modes, idle mode and power-down mode, both of which are software selectable. The idle mode turns off the processor clock but allows for continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power consumption. The external clock can be stopped at any time and in any state without affecting the 1.processor. 2. FEATURES x x x x x x x x x x x x x x x 8-bit CMOS microcontroller Fully static design Low standby current at full supply voltage DC-40 MHz operation 256 bytes of on-chip scratchpad RAM ROMless operation 64K bytes program memory address space 64K bytes data memory address space Four 8-bit bidirectional ports Three 16-bit timer/counters One full duplex serial port Boolean processor Six-source, two-level interrupt capability Built-in power management Packages: − Lead Free (RoHS) DIP 40: W78C032C40DL − Lead Free (RoHS) PLCC 44: W78C032C40PL − Lead Free (RoHS) PQFP 44: W78C032C40FL -2- W78C32C/W78C032C 3. PIN CONFIGURATIONS 40-Pin DIP T2, P1.0 T2EX, P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST RXD, P3.0 TXD, P3.1 INT0, P3.2 INT1, P3.3 T0, P3.4 T1, P3.5 WR, P3.6 RD, P3.7 XTAL2 XTAL1 Vss 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 44-Pin PLCC INT0, P3.2 INT1, P3.3 T0, P3.4 T1, P3.5 A T D 2 0 , , P P 1 V 0 . N C . 0 C C 0 A D 1 , P 0 . 1 A D 2 , P 0 . 2 P 3 . 7 , / R D EA ALE PSEN P2.7, A15 P2.6, A14 P2.5, A13 P2.4, A12 P2.3, A11 P2.2, A10 P2.1, A9 P2.0, A8 X T A L 2 X V N P T S C 2 A S . L 0 1 , A 8 P 2 . 1 , A 9 P 2 . 2 , A 1 0 P 2 . 3 , A 1 1 T 2 E X , P P P P 1 1 1 1 . . . . 4 3 2 1 A D 3 , P 0 . 3 6 5 4 3 2 1 44 43 42 41 40 7 39 8 38 9 37 10 36 11 35 12 34 13 33 14 32 15 31 16 30 29 17 18 19 20 21 22 23 24 25 26 27 28 P 3 . 6 , / W R P0.0, AD0 P0.1, AD1 P0.2, AD2 P0.3, AD3 P0.4, AD4 P0.5, AD5 P0.6, AD6 P0.7, AD7 44-Pin QFP T 2 E X , P P P P 1 1 1 1 . . . . 4 3 2 1 P1.5 P1.6 P1.7 RST RXD, P3.0 NC TXD, P3.1 Vcc P1.5 P1.6 P1.7 RST P0.4, AD4 P0.5, AD5 P0.6, AD6 P0.7, AD7 EA NC ALE PSEN P2.7, A15 P2.6, A14 P2.5, A13 RXD, P3 0 NC TXD, INT0, P3 2 INT1, P3T0, 3 P3.4 T1, P3.5 P 2 . 4 , A 1 2 A D 0 , P 0 . 0 A D 1 , P 0 . 1 A D 2 , P 0 . 2 A D 3 , P 0 . 3 44 43 42 41 40 39 38 37 36 35 34 33 32 31 3 30 4 29 5 28 6 27 7 26 8 9 25 10 24 23 11 12 13 14 15 16 17 18 19 20 21 22 1 2 P 3 . 6 , / W R -3- T 2 , P 1 V . N C 0 C C P 3 . 7 , / R D X T A L 2 X V N P T S C 2 A S . L 0 1 , A 8 P 2 . 1 , A 9 P 2 . 2 , A 1 0 P 2 . 3 , A 1 1 P0.4, AD4 P0.5, AD5 P0.6, AD6 P0.7, AD7 EA NC ALE PSEN P2.7, A15 P2.6, A14 P2.5, A13 P 2 . 4 , A 1 2 Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 4. PIN DESCRIPTION P0.0−P0.7 Port 0, Bits 0 through 7. Port 0 is a bidirectional I/O port. This port also provides a multiplexed low order address/data bus during accesses to external memory. P1.0−P1.7 Port 1, Bits 0 through 7. Port 1 is a bidirectional I/O port with internal pull-ups. Pins P1.0 and P1.1 also serve as T2 (Timer 2 external input) and T2EX (Timer 2 capture/reload trigger), respectively. P2.0−P2.7 Port 2, Bits 0 through 7. Port 2 is a bidirectional I/O port with internal pull-ups. This port also provides the upper address bits for accesses to external memory. P3.0−P3.7 Port 3, Bits 0 through 7. Port 3 is a bidirectional I/O port with internal pull-ups. All bits have alternate functions, which are described below: PIN ALTERNATE FUNCTION P3.0 RXD Serial Receive Data P3.1 TXD Serial Transmit Data P3.2 INT0 External Interrupt 0 P3.3 INT1 External Interrupt 1 P3.4 T0 Timer 0 Input P3.5 T1 Timer 1 Input P3.6 WR Data Write Strobe P3.7 RD Data Read Strobe EA External Address Input, active low. This pin forces the processor to execute out of external ROM. This pin should be kept low for all W78C032C operations. RST Reset Input, active high. This pin resets the processor. It must be kept high for at least two machine cycles in order to be recognized by the processor. ALE Address Latch Enable Output, active high. ALE is used to enable the address latch that separates the address from the data on Port 0. ALE runs at 1/6th of the oscillator frequency. A single ALE pulse is skipped during external data memory accesses. ALE goes to a high state during reset with a weak pull-up. -4- W78C32C/W78C032C PSEN Program Store Enable Output, active low. PSEN enables the external ROM onto the Port 0 address/data bus during fetch and MOVC operations. PSEN goes to a high state during reset with a weak pull-up. XTAL1 Crystal 1. This is the crystal oscillator input. This pin may be driven by an external clock. XTAL2 Crystal 2. This is the crystal oscillator output. It is the inversion of XTAL1. VSS, VCC Power Supplies. These are the chip ground and positive supplies. -5- Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 5. FUNCTIONAL DESCRIPTION The W78C032C architecture consists of a core controller surrounded by various registers, four general purpose I/O ports, 256 bytes of RAM, three timer/counters, and a serial port. The processor supports 111 different instruction and references both a 64K program address space and a 64K data storage space. 5.1 Timers 0, 1, and 2 Timers 0, 1, and 2 each consist of two 8-bit data registers. These are called TL0 and TH0 for Timer 0, TL1 and TH1 for Timer 1, and TL2 and TH2 for Timer 2. The TCON and TMOD registers provide control functions for timers 0, 1. The T2CON register provides control functions for Timer 2. RCAP2H and RCAP2L are used as reload/capture registers for Timer 2. The operations of Timer 0 and Timer 1 are the same as in the W78C31. Timer 2 is a special feature of the W78C032C: it is a 16-bit timer/counter that is configured and controlled by the T2CON register. Like Timers 0 and 1, Timer 2 can operate as either an external event counter or as an internal timer, depending on the setting of bit C/T2 in T2CON. Timer 2 has three operating modes: capture, autoreload, and baud rate generator. The clock speed at capture or auto-reload mode is the same as that of Timers 0 and 1. 5.2 Clock The W78C032C is designed to be used with either a crystal oscillator or an external clock. Internally, the clock is divided by two before it is used. This makes the W78C032C relatively insensitive to duty cycle variations in the clock. 5.2.1 Crystal Oscillator The W78C032C incorporates a built-in crystal oscillator. To make the oscillator work, a crystal must be connected across pins XTAL1 and XTAL2. In addition, a load capacitor must be connected from each pin to ground, and a resistor must also be connected from XTAL1 to XTAL2 to provide a DC bias when the crystal frequency is above 24 MHz. 5.2.2 External Clock An external clock should be connected to pin XTAL1. Pin XTAL2 should be left unconnected. The XTAL1 input is a CMOS-type input, as required by the crystal oscillator. As a result, the external clock signal should have an input one level of greater than 3.5 volts. 5.3 5.3.1 Power Management Idle Mode The idle mode is entered by setting the IDL bit in the PCON register. In the idle mode, the internal clock to the processor is stopped. The peripherals and the interrupt logic continue to be clocked. The processor will exit idle mode when either an interrupt or a reset occurs. -6- W78C32C/W78C032C 5.3.2 Power-down Mode When the PD bit of the PCON register is set, the processor enters the power-down mode. In this mode all of the clocks, including the oscillator are stopped. The only way to exit power-down mode is by a reset. 5.3.3 Reset The external RESET signal is sampled at S5P2. To take effect, it must be held high for at least two machine cycles while the oscillator is running. An internal trigger circuit in the reset line is used to deglitch the reset line when the W78C032C is used with an external RC network. The reset logic also has a special glitch removal circuit that ignores glitches on the reset line. During reset, the ports are initialized to FFH, the stack pointer to 07H, PCON (with the exception of bit 4) to 00H, and all of the other SFR registers except SBUF to 00H. SBUF is not reset. -7- Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 6. ELECTRICAL CHARACTERISTICS 6.1 Absolute Maximum Ratings PARAMETER SYMBOL MIN. MAX. UNIT VCC−VSS -0.3 +7.0 V Input Voltage VIN VSS -0.3 VCC +0.3 V Operating Temperature TA 0 70 °C Storage Temperature TST -55 +150 °C DC Power Supply Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. 6.2 D.C. Characteristics VCC−VSS = 5V ±10%, TA = 25° C, FOSC = 20 MHz unless otherwise specified. PARAMETER SYM. SPECIFICATION TEST CONDITIONS TYP. MAX. 4.5 5 5.5 V Operating Voltage VDD Operating Current IDD No load VDD = 5.5V - - 30 mA IIDLE Idle mode VDD = 5.5V - - 6 mA Power-down mode VDD = 5.5V - - 50 μA -75 - +10 μA - +184 +350 μA Idle Current Power Down Current IPWDN - UNIT MIN. Input Current P1, P3 IIN1 VDD = 5.5V VIN = 0V or VDD Input Current RST (*2) IIN2 VDD = 5.5V VIN = VDD Input Leakage Current P0 (*1) ILK VDD = 5.5V 0V<VIN<VDD -10 - +10 μA Output Low Voltage P1, P2 (*1), P3 VOL1 VDD = 4.5V IOL1 = +2 mA - - 0.45 V Output Low Voltage ALE, PSEN , P0 (*1) VOL2 VDD = 4.5V IOL2 = +4 mA - - 0.45 V Output High Voltage P1, P3 VOH1 VDD = 4.5V IOH1 = -100 μA 2.4 - - V VOH2 VDD = 4.5V IOH2 = -400 μA 2.4 - - V VIL1 VDD = 4.5V 0 - 0.8 V Output High Voltage ALE, PSEN , P0 (*1), P2 (*1) Input Low Voltage P1, P3 -8- W78C32C/W78C032C DC Characteristics, continued PARAMETER Input Low Voltage XTAL1, RST (*3) Input High Voltage P1, P3 Input High Voltage XTAL1, RST (*3) SYM. SPECIFICATION TEST CONDITIONS UNIT MIN. TYP. MAX. 0.8 VIL2 VDD = 4.5V 0 - VIH1 VDD = 5.5V 2.4 - VIH2 VDD = 5.5V 3.5 - VDD +0.2 VDD +0.2 V V V Notes: 1. P0 and P2 are in external access mode. 2. RST pin has an internal pull-down resistor of about 30K Ω. 3. XTAL1 is a CMOS input and RST is a Schmitt trigger input. 6.3 A.C. Characteristics The AC specifications are a function of the particular process used to manufacture the part, the ratings of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the specifications can be expressed in terms of multiple input clock periods (TCP), and actual parts will usually experience less than a ±20 nS variation. The numbers below represent the performance expected from a 0.5 micron CMOS process when using 2 and 4 mA output buffers. 6.3.1 Clock Input Waveform XTAL1 T CH T CL F OP, PARAMETER TCP SYMBOL MIN. TYP. MAX. UNIT NOTES Operating Speed FOP 0 - 40 MHz 1 Clock Period TCP 25 - - nS 2 Clock High TCH 10 - - nS 3 Clock Low TCL 10 - - nS 3 Notes: 1. The clock may be stopped indefinitely in either state. 2. The TCP specification is used as a reference in other specifications. 3. There are no duty cycle requirements on the XTAL1 input. -9- Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 6.3.2 Program Fetch Cycle PARAMETER SYMBOL MIN. TYP. MAX. UNIT NOTES Address Valid to ALE Low TAAS 1 TCP-Δ - - nS 4 Address Hold after ALE Low TAAH 1 TCP-Δ - - nS 1, 4 ALE Low to PSEN Low TAPL 1 TCP-Δ - - nS 4 PSEN Low to Data Valid TPDA - - 2 TCP nS 2 Data Hold after PSEN High TPDH 0 - 1 TCP nS 3 Data Float after PSEN High TPDZ 0 - 1 TCP nS ALE Pulse Width TALW 2 TCP-Δ 2 TCP - nS 4 PSEN Pulse Width TPSW 3 TCP-Δ 3 TCP - nS 4 Notes: 1. P0.0−P0.7, P2.0−P2.7 remain stable throughout entire memory cycle. 2. Memory access time is 3 TCP. 3. Data have been latched internally prior to PSEN going high. 4. "Δ" ( due to buffer driving delay and wire loading) is 20 nS. 6.3.3 Data Read Cycle PARAMETER SYMBOL MIN. TYP. MAX. UNIT NOTES ALE Low to RD Low TDAR 3 TCP-Δ - 3 TCP+Δ nS 1, 2 RD Low to Data Valid TDDA - - 4 TCP nS 1 Data Hold after RD High TDDH 0 - 2 TCP nS Data Float after RD High TDDZ 0 - 2 TCP nS RD Pulse Width TDRD 6 TCP-Δ 6 TCP - nS Notes: 1. Data memory access time is 8 TCP. 2. "Δ" (due to buffer driving delay and wire loading) is 20 nS. - 10 - 2 W78C32C/W78C032C 6.3.4 Data Write Cycle PARAMETER SYMBOL MIN. TYP. MAX. UNIT ALE Low to WR Low TDAW 3 TCP-Δ - 3 TCP+Δ nS Data Valid to WR Low TDAD 1 TCP-Δ - - nS Data Hold from WR High TDWD 1 TCP-Δ - - nS WR Pulse Width TDWR 6 TCP-Δ 6 TCP - nS Note: "Δ" ( due to buffer driving delay and wire loading) is 20 nS. 6.3.5 Port Access Cycle PARAMETER SYMBOL MIN. TYP. MAX. UNIT Port Input Setup to ALE Low TPDS 1 TCP - - nS Port Input Hold from ALE Low TPDH 0 - - nS Port Output to ALE TPDA 1 TCP - - nS Note: Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to ALE, since it provides a convenient reference. - 11 - Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 7. TIMING WAVEFORMS 7.1 Program Fetch Cycle S1 S2 S3 S4 S5 S6 S1 S2 S3 S4 S5 S6 XTAL1 TALW ALE TAPL PSEN TPSW TAAS PORT 2 TPDA TAAH TPDH, TPDZ PORT 0 A0-A7 Code 7.2 Data A0-A7 Code A0-A7 Data A0-A7 Data Read Cycle S4 S5 S6 S1 S2 S3 S4 S5 XTAL1 ALE PSEN PORT 2 A8-A15 A0-A7 DATA PORT 0 T DAR TDDA T DDH, T DDZ RD TDRD - 12 - S6 S1 S2 S3 W78C32C/W78C032C Timing Waveforms, continued 7.3 Data Write Cycle S4 S5 S6 S1 S2 S3 S4 S5 S6 S1 S2 S3 XTAL1 ALE PSEN PORT 2 PORT 0 A8-A15 A0-A7 DATA OUT WR TDAW 7.4 TDWD TDAD TDWR Port Access Cycle S5 S6 S1 XTAL1 ALE TPDS TPDA TPDH PORT DATA OUT INPUT SAMPLE - 13 - Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 8. TYPICAL APPLICATION CIRCUIT 8.1 Using External Program Memory and Crystal VCC 31 XTAL1 18 XTAL2 9 RST 12 13 14 15 INT0 INT1 T0 T1 1 2 3 4 5 6 7 8 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 10 u R CRYSTAL 8.2 K C1 EA 19 C2 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 39 38 37 36 35 34 33 32 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 21 22 23 24 25 26 27 28 RD WR PSEN ALE TXD RXD 17 16 29 30 11 10 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 A8 A9 A10 A11 A12 A13 A14 A15 AD0 3 AD1 4 AD2 7 AD3 8 AD4 13 AD5 14 AD6 17 AD7 18 D0 D1 D2 D3 D4 D5 D6 D7 GND 1 11 OC G Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 2 5 6 9 12 15 16 19 A0 A1 A2 A3 A4 A5 A6 A7 74LS373 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 1 GND 20 22 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 O0 O1 O2 O3 O4 O5 O6 O7 11 12 13 15 16 17 18 19 CE OE 27512 W78C32C/W78C032C Figure A CRYSTAL C1 C2 R 16 MHz 30P 30P - 24 MHz 15P 15P - 33 MHz 10P 10P 6.8K 40 MHz 5P 5P 6.8K Above table shows the reference values for crystal applications. Note: C1, C2, R components refer to Figure A. - 14 - AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 W78C32C/W78C032C 8.2 Expanded External Data Memory and Oscillator VCC 31 19 10 u 8.2 K OSCILLATOR EA XTAL1 18 XTAL2 9 RST INT0 12 13 14 15 INT1 T0 T1 1 2 3 4 5 6 7 8 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 39 38 37 36 35 34 33 32 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 21 22 23 24 25 26 27 28 A8 A9 A10 A11 A12 A13 A14 AD0 3 AD1 4 AD2 7 AD3 8 AD4 13 AD5 14 AD6 17 AD7 18 D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 GND 1 OC 11 G RD 17 16 PSEN 29 ALE 30 11 TXD 10 RXD WR 74LS373 2 5 6 9 12 15 16 19 A0 A1 A2 A3 A4 A5 A6 A7 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 A13 26 A14 1 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 GND 20 22 27 CE OE WR D0 D1 D2 D3 D4 D5 D6 D7 11 12 13 15 16 17 18 19 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 20256 W78C32C/W78C032C Figure B - 15 - Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 9. PACKAGE DIMENSIONS 9.1 40-pin DIP Symbol A A1 A2 B B1 c D E E1 e1 L D 40 21 E1 Dimension in inch Dimension in mm Min. Nom. Max. Min. Nom. Max. 0.254 0.150 0.155 0.160 3.81 0.016 0.018 0.022 0.406 0.457 0.559 0.048 0.050 0.054 1.219 1.27 0.008 0.010 0.014 0.203 0.254 0.356 2.055 2.070 52.20 52.58 20 1 3.937 4.064 1.372 0.590 0.600 0.610 14.986 15.24 15.494 0.540 0.545 0.550 13.72 13.84 13.97 0.090 0.100 0.110 2.286 2.54 0.120 0.130 0.140 3.048 3.302 3.556 0 a eA S 5.334 0.210 0.010 2.794 0 15 15 0.630 0.650 0.670 16.00 16.51 17.01 0.090 2.286 Notes: E S 1. Dimension D Max. & S include mold flash or tie bar burrs. 2. Dimension E1 does not include interlead flash. 3. Dimension D & E1 include mold mismatch and are determined at the .mold parting line. 4. Dimension B1 does not include dambar protrusion/intrusion. 5. Controlling dimension: Inches. 6. General appearance spec. should be based on final visual inspection spec. c A A2 A1 Base Plane Seating Plane L B e1 9.2 eA a B1 44-pin PLCC HD D 6 1 44 40 7 Symbol Dimension in inch Dimension in mm Min. Nom. Max. Min. Nom. Max. 39 E 17 HE GE 29 18 28 c A A1 A2 b1 b c D E e GD GE HD HE L y 0.185 4.699 0.508 0.020 0.145 0.150 0.155 3.683 3.81 3.937 0.026 0.028 0.032 0.66 0.711 0.813 0.016 0.018 0.022 0.406 0.457 0.559 0.008 0.010 0.014 0.203 0.254 0.356 0.648 0.653 0.658 16.46 16.59 16.71 0.648 0.653 0.658 16.46 16.59 16.71 0.050 BSC 1.27 BSC 0.590 0.610 0.630 14.99 15.49 16.00 0.590 0.610 0.630 14.99 15.49 16.00 0.680 0.690 0.700 17.27 17.53 17.78 0.680 0.690 0.700 17.27 17.53 17.78 0.090 0.100 0.110 2.296 2.54 2.794 0.004 L Notes: A2 A 1. Dimension D & E do not include interlead flash. 2. Dimension b1 does not include dambar protrusion/intrusion. 3. Controlling dimension: Inches 4. General appearance spec. should be based on final visual inspection spec. θ e b b1 Seating Plane A1 y GD - 16 - 0.10 W78C32C/W78C032C Package Dimensions, continued 9.3 44-pin QFP HD D Symbol 34 44 A A1 A2 b c D E e HD HE L L1 y θ 33 1 E HE 11 12 e b 22 Dimension in inch Dimension in mm Min. Nom. Max. Min. Nom. Max. --- --- --- --- 0.002 0.01 0.02 0.05 0.25 0.5 0.075 0.081 0.087 1.90 2.05 2.20 0.01 0.014 0.018 0.25 0.35 0.45 0.004 0.006 0.010 0.101 0.152 0.254 0.390 0.394 0.398 9.9 10.00 10.1 0.390 0.394 0.398 9.9 10.00 10.1 --- --- 0.025 0.031 0.036 0.635 0.80 0.952 0.510 0.520 0.530 12.95 13.2 13.45 0.510 0.520 0.530 12.95 13.2 13.45 0.025 0.031 0.037 0.65 0.8 0.95 0.051 0.063 0.075 1.295 1.6 1.905 0.08 0.003 0 7 0 7 Notes: 1. Dimension D & E do not include interlead flash. 2. Dimension b does not include dambar protrusion/intrusion. 3. Controlling dimension: Millimeter 4. General appearance spec. should be based on final visual inspection spec. c A2 A A1 Seating Plane See Detail F y θ L L1 Detail F - 17 - Publication Release Date: December 4, 2006 Revision A6 W78C32C/W78C032C 10. REVISION HISTORY VERSION DATE PAGE DESCRIPTION A2 July 1999 - Initial Issued A3 June, 2004 2 Revise part number in the item of packages A4 April 19, 2005 17 Add Important Notice A5 June 7, 2005 2 Add Lead Free (RoHS) parts A6 December 4, 2006 Remove block diagram 2 Remove all Leaded package parts Important Notice Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales. - 18 -