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| MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER DESCRIPTION The M54610P is a semiconductor integrated circuit consisting of an 8-bit parallel data interface function. PIN CONFIGURATION (TOP VIEW) Buffer 1 input BI1 BO2 BI2 BO5 BI3 GND 1 2 3 4 5 6 7 8 9 42 VCC Buffer 5 input Buffer 3 output FEATURES q I/O electrical characteristics equivalent to LSTTL q 3-state 8-bit data output q Strobe signal with polarity switching input q Wide operating temperature range Ta = -20 - +75C Buffer 2 output Buffer 2 input Buffer 5 output Buffer 3 input 41 BI5 40 BO3 39 RDY READY output 38 BI4 Buffer 4 input 37 BSYF BUSY flag output 36 EBSY Ext. BUSY input 35 GND APPLICATION Printer Buffer 4 output Buffer 1 output BO4 BO1 FUNCTION The M54610P, when used in a printer, is capable of implementing a standard 8-bit parallel data interface. As shown in the timing diagram, printing data DIN 1 through 8 and strobe pulses STB are input from a host computer. Data are exchanged by outputing the BUSY and ACK (ACKNOWLEDGE) signals to the host computer. Control signals EBSY, CS, WR, RD and ACKI are input from a printer controller, and this IC outputs DOU 1 through 8, and BSYF. BUSY output BUSY ACKNOWLEDGE output 34 BSSL BUSY select input 33 ACKI ACKNOWLEDGE input ACK 10 DIN8 11 DIN7 12 DIN6 13 DIN5 14 M54610P 32 CS 31 WR 30 RD 29 DOU8 28 DOU7 27 DOU6 26 DOU5 25 DOU4 24 DOU3 23 DOU2 22 DOU1 Chip select input Write input Read input Data inputs DIN4 15 DIN3 16 DIN2 17 DIN1 18 Data outputs Strobe input Strobe switch input STB 19 PSW 20 GND 21 Outline 42P4B MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER BLOCK DIAGRAM Buffer 1 input Buffer 2 output Buffer 2 input Buffer 5 output Buffer 3 input BI1 BO2 BI2 BO5 BI3 GND Buffer 4 output Buffer 1 output BUSY output BO4 BO1 BUSY 1 2 3 4 5 6 7 8 9 OR OR OR IA OD 4.7k x 7 IR OR IR 10k x 5 IRR OA OA IRR OA IRR 42 VCC Buffer 5 input Buffer 3 output READY output Buffer 4 input 41 BI5 40 BO3 39 RDY 38 BI4 37 BSYF BUSY flag output 36 EBSY Ext. BUSY input 35 GND "H" D TR Q D QRT "H" IRR 34 BSSL BUSY select input ACKNOWLEDGE ACK output 10 OR IRR 33 ACKI ACKNOWLEDGE input 32 CS Chip select input Write input IAA IA 31 WR IA 30 RD Read input 4.7k x 8 DIN8 DIN7 DIN6 Data inputs DIN5 DIN4 DIN3 DIN2 DIN1 Strobe input Strobe switch input 11 12 13 14 15 16 17 18 IR IR IR IR IR IR IR IR 8D 7D 6D 5D 4D 3D 2D 1D T STB PSW 19 20 IS 10k IRR 21 GND Note : IA, OD, and other marking at the I/O pins indicate the output circuit type. 8Q 7Q 6Q 5Q 4Q 3Q 2Q 1Q OZ OZ OZ OZ OZ OZ OZ OZ 29 DOU8 28 DOU7 27 DOU6 26 DOU5 25 DOU4 24 DOU3 23 DOU2 22 DOU1 Data outputs MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER I/O CIRCUIT DIAGRAM 1 Input circuit form: IA, IAA VCC 2 Input circuit form: IR, IRR VCC Input Input IAA only FI : 2 GND GND 3 Input circuit form: IS VCC 4 Output circuit form: OA VCC Input Output GND GND 5 Output circuit form: OR, OD VCC Resistance is infinite for OD circuit Output 6 Output circuit form: OZ VCC Output GND GND MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER PIN FUNCTION DESCRIPTION Pin No. 9 10 11 Pin name BUSY ACK DIN8 DIN1 STB PSW GND - Function BUSY output to host ACKNOWLEDGE output to host 8-bit parallel data input from host OPERATION TIMING DIAGRAM When initialized EBSY CS Input from printer controller WR RD ACKI When data is read - 18 19 20 6 21 35 22 Data strobe pulse input from host Polarity switching input for STB GND DOU1 DOU8 RD WR CS ACKI BSSL EBSY BSYF RDY VCC - 8-bit parallel data output to printer controller (3-state) - 29 30 31 32 33 34 36 37 39 42 Read input from printer controller Write input from printer controller Chip select input from printer controller ACKNOWLEDGE input from printer controller BUSY select input. Switches busy timing. External BUSY input from printer controller BUSY flag output to printer controller Inverted BUSY output to printer controller Power supply Output to printer controller DOU1 - 8 BSYF 1 Output to host controller ACK BUSY 2 1 2 Input from host controller STB DIN1 - 8 Valid data 1 : The broken lines of BSYF and BUSY show the timing when PSW is low. 2 : The broken lines of BUSY signal show the timing when BSSL is low. MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER ABSOLUTE MAXIMUM RATINGS (Ta = -20 - 75C unless otherwise noted) Symbol VCC VI Parameter Supply voltage Input voltage IR, IS IA, IAA, IRR OR OA, OD OZ Conditions Ratings -0.5 - +7 -0.5 - +15 -0.5 - VCC -0.5 - +15 -0.5 - VCC -0.5 - +5.5 -20 - 75 -55 - 125 Unit V V VO Topr Tstg Output voltage Operating temperature Storage temperature When output is "H" When output is "H" When output is "H" V C C RECOMMENDED OPERATING CONDITIONS (Ta = -20 - 75C unless otherwise noted) Symbol VCC IOH Supply voltage "H" output current OR, OA OZ OD VO = 5.5V OR, OA OZ OD Parameter Min. 4.75 0 0 0 0 0 0 Limits Typ. 5 Max. 5.25 -400 -2.8 100 8 8 100 Unit V A mA A mA IOL "L" output current MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER ELECTRICAL CHARACTERISTICS (Ta = -20 - 75C unless otherwise noted) Symbol VIH VIL VT+ VTVT+ - VTVIC VOH IOH VOL IOZH IOZL IIH IIH IIL IIL Parameter "H" input voltage "L" input voltage Positive threshold voltage Negative threshold voltage Hysterisis width Input clamp voltage "H" output voltage "H" output current "L" output voltage OFF-state "H" output current OFF-state "L" output current "H" input current "H" input current "L" input current "L" input current IA, IAA, IRR, IR IA, IAA, IRR, IR IS IS IS All inputs OA OZ OR OD OD OA, OZ OR OZ OZ IA, IS IAA IRR IR IA, IS IAA IRR IR OA OZ OR Test conditions Min. 2 1.4 0.5 0.4 2.7 2.4 2.4 Limits Typ. Max. 0.8 1.9 1.0 -1.5 3.1 2.9 3.1 0.3 0.3 0.3 100 0.4 0.4 0.4 20 -20 20 40 -0.4 -0.8 -0.4 -0.8 -1.1 -1.8 -100 -130 -1.5 Unit V V V V V V V A V A A A mA mA mA VCC = 5V VCC = 5V VCC = 5V VCC = 4.75V, II = -1mA IOH = -400A IOH = -2.6mA VCC = 4.75V IOH = -400A VCC = 4.75V, VO = 5.5V IOL = 24mA IOL = 8mA VCC = 4.75V IOL = 8mA VCC = 5.25V VCC = 5.25V VCC = 5.25V, VI = 2.7V VCC = 5.25V, VI = 2.7V VCC = 5.25V, VI = 0.4V VCC = 5.25V, VI = 0.4V (Note 1) VCC = 5.25V, VO = 0V VCC = 5.25V Point "A" in the operational timing diagram. When: 4.5V: BI1 Open: BI2, BSSL and BI5 0V: BI3, DIN1 - 8, EBSY and BI4. 1.6 0.8 0.8 -0.2 -0.4 IOS Output short-circuit current -20 -30 -0.8 mA ICC Supply current 35 45 mA : Typical values are at VCC = 5V and Ta = 25C. Note 1: Measurements are conducted in the shortest possible time, and no two outputs are shorted simultaneously. MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER SWITCHING CHARACTERISTICS (VCC = 5V and Ta = 25C unless otherwise noted) Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPHL tPLH tPHL tPZH tPZL tPH2 tPL2 Parameter Output "L-H" and "H-L" propagation time 1 Buffer Output "L-H" and "H-L" propagation time 2 Buffer Output "L-H" and "H-L" propagation time EBSY to BUSY Output "L-H" and "H-L" propagation time STB to DOU1 - 8 Output "L-H" propagation time STB to BUSY Output "H-L" propagation time ACKI to BUSY Output "H-L" propagation time WR to BUSY Output "L-H" propagation time WR to BSYF Output "H-L" propagation time STB to BSYF "H" output enabled time "L" output enabled time "H" output disabled time "L" output disabled time Test conditions (Note 2) Min. Limits Typ. Max. 200 200 300 300 500 500 500 500 500 500 500 500 500 RL = 1k, CL = 30pF RL = 1k, CL = 30pF RL = 1k, CL = 5pF RL = 1k, CL = 5pF 80 80 100 100 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Note 2: Refer to switching test circuits for measurement conditions. TIMING REQUIREMENTS (VCC = 5V and Ta = 25C unless otherwise noted) Symbol tW(STB) tW(ACK) tW(WR) tSU(DIN) th(DIN) trec(WR) Parameter STB "L" and "H" pulse width ACKI pulse width WR pulse width DIN1 - DIN8 setup time to STB DIN1 - DIN8 holding time to STB WR recovery time to ACKI Test conditions Min. 500 500 200 500 500 500 Limits Typ. Max. Unit ns ns ns ns ns ns MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER SWITCHING TEST CIRCUIT Input 2k VCC Output According to operation timing diagram DUT Load circuit PG 50 The load circuit to the output circuit type is as follows VCC VCC RL = 2k OA CL = 15pF OR CL = 15pF OD RL = 667 CL = 45pF VCC RL SW1 OZ Parameter tPZH tPZL tPHZ tPLZ SW1 Open Close Close Close SW2 Close Open Close Close CL 5k SW2 (1) The pulse generator (PG) characteristics: PRR = 100kHz, tr = 6ns, tf = 6ns, tw = 5s, VP = 3VP-P, ZO = 50 (2) The diodes used are all high-speed switching diodes (trr 4ns). (3) The capacitance CL includes stray wiring capacitance and the probe input capacitance. MITSUBISHI M54610P 8-BIT PARALLEL DATA INTERFACE FOR PRINTER TIMING DIAGRAM (Reference voltage = 1.3V) tSU(DIN) th(DIN) tSU(DIN) tW(WR) DIN1 - 8 tW(STB) STB WR STB DOU1 - 8 tPHL tPLH BUSY tPHL BSYF tPLH tW(ACK) tPHL tPLH WR ACKI trec(WR) BUSY tPHL EBSY BUSY tPHL tPLH RD Buffer input DOU1 - 8 tPZL tPLZ 0.5V 1 Buffer output tPHL tPLH 0.5V DOU1 - 8 tPZH tPHZ 2 Buffer output tPLH tPHL Note: The shaded are indicated the period when switching is possible. |
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