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1 ? the MR27V6452D is a 64mbit electrically programmable read-only memory with page mode. its configuration can be electrically switched between 4,194,304 word x 16bit and 8,388,608 word x 8 bit. the MR27V6452D operates on a single +3.3v power supply and is ttl compatible. the mr27 v6452d provides page mode which can greatly reduce the read access time. since the mr27v6452 d operates asynchronously , external clocks are not required , making this device easy-to-use. the MR27V6452D is suitable as large-capacity fixed memory for microcomputers and data terminals. it is manufactured using a cmos double silicon gate technology and is offered in 44-pin sop or 48- pin tsop packages. 1a MR27V6452D preliminary 4,194,304-word x 16-bit or 8,388,608-word x 8-bit 8-word x 16-bit or 16-word x 8-bit page mode one time prom description features ?4,194,304 word x 16bit / 8,388,608 word x 8bit electrically switchable configuration ?single +3.3v power supply ?access time 120ns page mode access time 40ns ?input / output ttl compatible ?three-state output ?packages 44-pin plastic sop (sop44-p-600-1.27-k) 48-pin plastic tsop (tsop ii 48-p-550-0.80-k) semiconductor
2 pin configuration (top view) MR27V6452D 45 a18 a8 a9 a11 a12 a13 a14 a15 a16 v ss d15/a-1 d7 d14 d6 d13 d5 d12 d4 v cc a10 44 43 42 4 5 6 7 41 40 39 38 8 9 10 11 37 36 35 34 12 13 14 15 33 32 31 30 16 17 18 19 29 28 27 26 20 21 22 23 25 24 a19 a17 a7 a6 a5 a4 a3 a2 a1 a0 ce v ss oe d0 d8 d1 d9 d2 d10 d3 d11 48 nc nc 47 1 2 nc nc a21 46 3 43 a18 a8 a9 a11 a12 a13 a14 a15 a16 v ss d15/a-1 d7 d14 d6 d13 d5 d12 d4 v cc a10 42 41 40 2 3 4 5 39 38 37 36 6 7 8 9 35 34 33 32 10 11 12 13 31 30 29 28 14 15 16 17 27 26 25 24 18 19 20 21 23 22 a19 a17 a7 a6 a5 a4 a3 a2 a1 a0 ce v ss oe d0 d8 d1 d9 d2 d10 d3 d11 44 a21 1 byte/vpp byte/vpp 48-pin tsop 44-pin sop pin names functions d15/a-1 data output / address input a0 - a21 address input d0 - d14 data output ce oe output enable v cc power supply voltage byte/v pp mode switch / program power supply voltage nc non connection chip enable v ss gnd a20 a20
3 a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 a19 a20 a21 block diagram d0 ce byte/v pp oe ce pgm oe address buffer row decoder column decoder memory matrix multiplexer & page data latch output buffer function table stand-by output disable read (8-bit) read (16-bit) mode d15/a-1 ce oe v cc ll d out l l l/h l h l * h * h l * : don't care d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 x8/x16 switch a-1 in 8-bit output mode, these pins are three-stated and pin d15 functions as the a-1 address pin. 3.0v to 3.6v d8 - d14 d0 - d7 h l d out hi-z h hi-z * hi-z program lh d in program inhibit h h hi-z program verify hl d out 9.75v 4.0v MR27V6452D byte/v pp 4,194,304x16-bit or 8,388,608x8-bit
4 operating temperature under bias storage temperature input voltage output voltage power supply voltage program power supply voltage power dissipation per package parameter symbol topr unit value condition recommended operating conditions for read v cc power supply voltage v pp power supply voltage input "h" level input "l" level parameter symbol v cc unit 3.6 typ. 3.0 condition t stg v i v o v cc v pp p d 0 to 70 -55 to 125 v -0.5 to v cc + 0.5 v -0.5 to v cc + 0.5 v -0.5 to 5 v -0.5 to 11.5 w 1.0 - relative to v ss (ta=0 to 70 c) min. max. v v cc +0.5 -0.5 - v v cc +0.5 2.2 - v 0.8 -0.5 - v v pp v ih v il v cc =3.0v-3.6v voltage is relative to vss absolute maximum ratings - - MR27V6452D c c
ns 0.4 - 5 electrical characteristics (read operation) dc characteristics input leakage current output leakage current v cc power supply current (standby) v cc power supply current (read) v pp power supply current parameter symbol unit condition (v cc =3.3v 0.3v, ta=0 to 70 c) input "h" level input "l" level output "h" level output "l" level voltage is relative to vss 10 typ. - min. max. i lo i cs1 i cs2 i cca m a - 10 - m a - 10 - m a - ce=v cc 1 - ce=v ih 100 -ma tc=120ns - - i pp v ih v il v oh v ol 10 m a v pp =v cc v cc +0.5 2.0 v - 0.8 -0.5 v - - v cc -0.4 v i oh =-200 m a - v i ol =1ma - - - ce=v il , oe=v ih v i =0 to vcc v o =0 to vcc MR27V6452D ma - 400 100pf 1.7v output ac characteristics address access time ce access time oe access time output disable time parameter symbol t acc unit - condition (v cc =3.3v 0.3v, ta=0 to 70 c) min. max. t ce ns ce=oe=v il - ns oe=v il 40 - ns ce=v il 30 0 ns oe=v il 25 0 ns - 0 t oe t oh ce=v il ce=oe=v il output hold time 120 120 t chz t ohz address access cycle time t c 120 ns - - 0v/3v 0.8v/2.0v 100pf 0.8v/2.0v measurement conditions input signal level input timing reference level output load output timing reference level 120 - 40 - - 40 ns ns ns page set up time page access cycle time page access time t pset t pc t pac - - note(1) note(1) t pset is defined as the end of either ce trailing edge or address transition in random access term until the first page address transition. i li
MR27V6452D a0 - a2 (word mode) a-1 - a2 (byte mode) 6 address t oh t ce t chz t oe t ohz t acc ce oe valid data hi-z hi-z dout t oh t ce t chz t oe t ohz t acc ce oe hi-z hi-z timing chart normal mode read cycle page mode read cycle t pac t pac dout t pset t pset t c t c a3 - a21 t pc t pc
7 electrical characteristics (programming operation) dc characteristics input leakage current v pp power supply current (program) v cc power supply current parameter symbol i li unit 10 typ. - condition (ta=25 c 5 c) min. max. input "l" level i pp2 i cc v ih v il m a - v i =v cc +0.5v 50 - ma - ce=v il 80 - ma - - v cc +0.5 3.0 v - 0.8 -0.5 v - - 9.75 - voltage is relative to vss input "h" level v oh - 2.4 v i oh =-400 m a - output "h" level v ol 0.45 - v i ol =2.1ma - output "l" level v pp 10.0 9.5 v - program voltage v cc power supply voltage v cc 4.1 3.9 v 4.0 - ac characteristics address set-up time oe set-up time data set-up time parameter symbol t as unit - typ. 2 condition min. max. data hold time t oes t ds t ah t dh m s - - 2 m s - - 2 m s - - - 0 m s - - 2 m s - - - address hold time t dfp 130 0 ns - output float delay from oe t vs - 2 m s - v pp voltage set-up time program pulse width t pw 11 9 m s 10 - data valid from oe t oe 150 - ns - - - - - - (v cc =4.0v 0.1v,v pp =9.75v 0.25v,ta=25 c 5 c) MR27V6452D pin check function pin check function is to check contact between each device-pin and each socket-lead with eprom programmer. setting up address as the following condition call the preprogrammed codes on device outputs. a0 (v cc =3.3v 0.3v,ce=v il ,byte/v pp =v ih ,ta=25 c 5 c) a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 a19 0 1 0 10 1 01 0 vh* 0 1 01 0 10 0 11 1 0 1 0 1 0 1 0 1 vh* 1 0 1 0 1 0 1 1 0 0 data ff00 00ff * :vh=8v a20 0 1 a21 0 1
8 a0 - a21 ce d0 - d15 programming waveform oe byte/v pp pin capacitance input byte/v pp parameter c in1 unit 12 typ. - (v cc =3.3v, ta=25 c, f=1mhz) min. max. c in2 pf - v i =0v 120 -- output c out 15 -- v o =0v symbol condition MR27V6452D t as t pw t ah t oes t dfp t ds t dh t oe t vs program program verify d in d out
9 programming / verify flow chart MR27V6452D v cc =4.0v v pp =9.75v x=0 yes pass no ng no yes ng pass x=5? x=x+1 yes no v cc =3.0v v pp =3.0v programming pin check no ok v cc =3.6v v pp =3.6v ng pass v cc =3.0v v pp =3.0v ng pass verify no ok start start pin check program 10 m s last address ? increment address address = first location program 10 m s verify (one byte) last address ? increment address verify (one byte) device passed device failed device passed device failed verify (one byte) verify (one byte) bad insertion bad insertion address = first location address = first location
semiconductor notice the information contained herein can change without notice owing to product and/or technical im- provements. before using the product, please make sure that the information being referred to is up-to- date. the outline of action and examples for application circuits described herein have been chosen as an explanation for the standard action and performance of the product. when planning to use the product, please ensure that the external conditions are reflected in the actual circuit, assembly, and program designs. when designing your product, please use our product below the specified maximum ratings and within the specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating temperature. oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected opera- tion resulting from misuse, neglect, improper installation, repair, alteration or accident, improper han- dling, or unusual physical or electrical stress including, but not limited to, exposure to parameters be- yond the specified maximum ratings or operation outside the specified operating range. neither indemnity against nor license of a third partys industrial and intellectual property right, etc. is granted by us in connection with the use of the product and/or the information and drawings contained herein. no responsibility is assumed by us for any infringement of a third partys right which may result from the use thereof. the products listed in this document are intended for use in general electronics equipment for commer- cial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). these products are not authorized for use in any system or application that requires special or enhanced quality and reliability characteristics nor in any system or application where the failure of such system or application may result in the loss or damage of property, or death or injury to humans. such applications include, but are not limited to, traffic and automotive equipment, safety de- vices, aerospace equipment, nuclear power control, medical equipment, and life-support systems. certain products in this document may need government approval before they can be exported to par- ticular countries. the purchaser assumes the responsibility of determining the legality of export of these products and will take appropriate and necessary steps at their own expense for these. no part of the contents cotained herein may be reprinted or reproduced without our prior permission. all brand, company and product names are the trademarks or registered trademarks of their respective owners. copyright 1998 oki electric industry co., ltd.
addresses & semiconductor web sites oki electric industry co., ltd. oki electric industry co., ltd. oki electric industry co., ltd. oki electric industry co., ltd. oki electric industry co., ltd., device business group, 10-3, shibaura, 4-chome, minato-ku, tokyo 108, japan, tel.: +81-(0)3-5445-6327, fax.: +81-(0)3-5445-6328, http://www.oki.co.jp/oki/dbg/english/index.htm (note: url is case sensitive) oki semiconductor group oki semiconductor group oki semiconductor group oki semiconductor group oki semiconductor group, 785 north mary avenue, sunnyvale, ca 94086, u.s.a., tel.: +1-408-720-1900, fax.: +1-408-720-1918, http://www.okisemi.com/ oki electric europe gmbh oki electric europe gmbh oki electric europe gmbh oki electric europe gmbh oki electric europe gmbh, head office europe, hellersbergstrasse 2, d-41460 neuss, germany, tel: +49-2131-15960, fax: +49-2131-103539, http://www.oki-europe.de/ oki electronics (hong kong) ltd. oki electronics (hong kong) ltd. oki electronics (hong kong) ltd. oki electronics (hong kong) ltd. oki electronics (hong kong) ltd., suite 1901-1&19, tower 3, china hong kong city, 33 canton road, tsimshatsui, kowloon, hong kong, tel.: +852-2-736-2336, fax.: +852-2-736-2395 oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd., 78 shenton way 09-01, singapore 0207, tel.: +65-221-3722, fax.: +65-323-5376 oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd. oki semiconductor (asia) pte. ltd., taipei branch, 7th fl. no.260, tun hwa north road, taipei, taiwan, r.o.c., sumitomo-flysun building, tel.: +886-2-2719-2561, fax.: +886-2-2715-2892 http://www.oki.net.tw/ for further information, please contact: people to people technology

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