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E2G0019-17-41
Semiconductor MSM512800C
Semiconductor
This version: Jan. 1998 MSM512800C Previous version: May 1997
262,144-Word 8-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
DESCRIPTION
The MSM512800C is a 262,144-word 8-bit dynamic RAM fabricated in Oki's silicon-gate CMOS technology. The MSM512800C achieves high integration, high-speed operation, and low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/single-layer metal CMOS process. The MSM512800C is available in a 26/24-pin plastic SOJ or 26/24-pin plastic TSOP.
FEATURES
* 262,144-word 8-bit configuration * Single 5 V power supply, 5% tolerance * Input : TTL compatible, low input capacitance * Output : TTL compatible, 3-state * Refresh : 512 cycles/8 ms * Fast page mode, read modify write capability * CAS before RAS refresh, hidden refresh, RAS-only refresh capability * Package options: 26/24-pin 300 mil plastic SOJ (SOJ26/24-P-300-1.27) (Product : MSM512800C-xxJS) 26/24-pin 300 mil plastic TSOP (TSOPII26/24-P-300-1.27-K) (Product : MSM512800C-xxTS-K) xx indicates speed rank.
PRODUCT FAMILY
Family MSM512800C-40 MSM512800C-45 MSM512800C-50 Access Time (Max.) tRAC tAA tCAC tOEA 40 ns 20 ns 10 ns 10 ns 45 ns 24 ns 14 ns 14 ns 50 ns 26 ns 14 ns 14 ns Cycle Time Power Dissipation (Min.) Operating (Max.) Standby (Max.) 80 ns 90 ns 100 ns 735 mW 630 mW 577.5 mW 5.25 mW
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Semiconductor
PIN CONFIGURATION (TOP VIEW)
VSS 1
26 VSS VSS 1 26 VSS DQ1 2 DQ3 4 DQ4 5 WE 6 25 DQ8 DQ1 2 DQ2 3 DQ3 4 DQ4 5 25 DQ8 DQ2 3 24 DQ7 23 DQ6 22 DQ5 24 DQ7 23 DQ6 22 DQ5 21 CAS 19 OE 21 CAS 19 OE 18 A8 17 A7 16 A6 15 A5 14 A4 WE 6 RAS 8 A0 9 RAS 8 A0 9 18 A8 17 A7 16 A6 15 A5 14 A4 A1 10 A2 11 A3 12 VCC 13 A1 10 A2 11 A3 12 VCC 13 26/24-Pin Plastic SOJ 26/24-Pin Plastic TSOP (K Type)
Pin Name A0 - A8 RAS CAS DQ1 - DQ8 OE WE VCC VSS Function Address Input Row Address Strobe Column Address Strobe Data Input/Data Output Output Enable Write Enable Power Supply (5 V) Ground (0 V)
MSM512800C
Note:
The same GND voltage level must be provided to every VSS pin.
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Semiconductor
MSM512800C
BLOCK DIAGRAM
RAS CAS Timing Generator Timing Generator
9
Column Address Buffers
9
Column Decoders
Write Clock Generator
WE OE
8
A0 - A8
Internal Address Counter
Output Buffers
8 8
Refresh Control Clock
Sense Amplifiers
8
I/O Selector
8 8
DQ1 - DQ8
Input Buffers
8
9
Row Address Buffers
9
Row Decoders
Word Drivers
Memory Cells
VCC On Chip VBB Generator VSS
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Semiconductor
MSM512800C
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Parameter Voltage on Any Pin Relative to VSS Short Circuit Output Current Power Dissipation Operating Temperature Storage Temperature Symbol VT IOS PD* Topr Tstg Rating -1.0 to 7.0 50 1 0 to 70 -55 to 150 Unit V mA W C C
*: Ta = 25C Recommended Operating Conditions
Parameter Power Supply Voltage Input High Voltage Input Low Voltage Symbol VCC VSS VIH VIL Min. 4.75 0 2.4 -1.0 Typ. 5.0 0 -- -- Max. 5.25 0 6.5 0.8 (Ta = 0C to 70C) Unit V V V V
Capacitance
Parameter Input Capacitance (A0 - A8) Input Capacitance (RAS, CAS, WE, OE) Output Capacitance (DQ1 - DQ8) Symbol CIN1 CIN2 CI/O Typ. -- -- --
(VCC = 5 V 5%, Ta = 25C, f = 1 MHz) Max. 6 7 7 Unit pF pF pF
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Semiconductor DC Characteristics
MSM512800C
(VCC = 5 V 5%, Ta = 0C to 70C) Condition MSM512800 MSM512800 MSM512800 C-45 C-40 C-50 Unit Note Min. Max. VCC 0.4 10 Min. 2.4 0 -10 Max. VCC 0.4 10 Min. 2.4 0 -10 Max. VCC 0.4 10 V V mA 2.4 0 -10
Parameter Output High Voltage Output Low Voltage Input Leakage Current
Symbol
VOH IOH = -5.0 mA VOL IOL = 4.2 mA 0 V VI 6.5 V; ILI All other pins not under test = 0 V DQ disable 0 V VO 5.25 V RAS, CAS cycling, tRC = Min. RAS, CAS = VIH ICC2 RAS, CAS VCC -0.2 V RAS cycling, ICC3 CAS = VIH, tRC = Min. RAS = VIH, ICC5 CAS = VIL, DQ = enable ICC6 RAS cycling, CAS before RAS RAS = VIL, ICC7 CAS cycling, tPC = Min.
Output Leakage Current Average Power Supply Current (Operating) Power Supply Current (Standby) Average Power Supply Current (RAS-only Refresh) Power Supply Current (Standby) Average Power Supply Current (CAS before RAS Refresh) Average Power Supply Current (Fast Page Mode)
ILO
-10
10
-10
10
-10
10
mA
ICC1
-- -- --
130 2 1
-- -- --
120 2 1
-- -- --
110 2 1
mA 1, 2
mA
1
--
130
--
120
--
110
mA 1, 2
--
5
--
5
--
5
mA
1
--
130
--
120
--
110
mA 1, 2
--
110
--
100
--
90
mA 1, 3
Notes : 1. ICC Max. is specified as ICC for output open condition. 2. The address can be changed once or less while RAS = VIL. 3. The address can be changed once or less while CAS = VIH.
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Semiconductor AC Characteristics (1/2)
MSM512800C
(VCC = 5 V 5%, Ta = 0C to 70C, Input Pulse Levels 0 V to 3 V) Note 1, 2, 3 Parameter Random Read or Write Cycle Time Read Modify Write Cycle Time Fast Page Mode Cycle Time Fast Page Mode Read Modify Write Cycle Time Access Time from RAS Access Time from CAS Access Time from Column Address Access Time from CAS Precharge Access Time from OE Output Low Impedance Time from CAS CAS to Data Output Buffer Turn-off Delay Time OE to Data Output Buffer Turn-off Delay Time Transition Time Refresh Period RAS Precharge Time RAS Pulse Width RAS Pulse Width (Fast Page Mode) RAS Hold Time RAS Hold Time referenced to OE CAS Precharge Time (Fast Page Mode) CAS Pulse Width CAS Hold Time CAS to RAS Precharge Time RAS Hold Time from CAS Precharge RAS to CAS Delay Time RAS to Column Address Delay Time Row Address Set-up Time Row Address Hold Time Column Address Set-up Time Column Address Hold Time Column Address Hold Time from RAS Column Address to RAS Lead Time Read Command Set-up Time Read Command Hold Time Read Command Hold Time referenced to RAS MSM512800 MSM512800 MSM512800 C-40 C-50 C-45 Symbol Unit Note Min. tRC tRWC tPC tPRWC tRAC tCAC tAA tCPA tOEA tCLZ tOFF tOEZ tT tREF tRP tRAS tRASP tRSH tROH tCP tCAS tCSH tCRP tRHCP tRCD tRAD tASR tRAH tASC tCAH tAR tRAL tRCS tRCH tRRH 80 130 30 70 -- -- -- -- -- 0 0 0 3 -- 30 40 40 10 10 10 10 40 5 25 15 10 0 5 0 10 30 20 0 0 0 Max. -- -- -- -- 40 10 20 25 10 -- 10 10 50 8 -- 10,000
100,000
Min. 90 140 34 75 -- -- -- -- -- 0 0 0 3 -- 35 45 45 14 10 10 14 45 5 28 17 12 0 7 0 12 35 24 0 0 0
Max. -- -- -- -- 45 14 24 28 14 -- 10 10 50 8 -- 10,000
100,000
Min. 100 150 36 77 -- -- -- -- -- 0 0 0 3 -- 40 50 50 14 10 10 14 50 5 30 18 13 0 8 0 13 40 26 0 0 0
Max. -- -- -- -- 50 14 26 30 14 -- 10 13 50 8 -- 10,000
100,000
ns ns ns ns ns ns ns ns ns ns ns ns ns ms ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 8 8 5 6 4, 5, 6 4, 5 4, 6 4 4 4 7 7 3
-- -- -- 10,000 -- -- -- 30 20 -- -- -- -- -- -- -- -- --
-- -- -- 10,000 -- -- -- 31 21 -- -- -- -- -- -- -- -- --
-- -- -- 10,000 -- -- -- 36 24 -- -- -- -- -- -- -- -- --
6/16
Semiconductor AC Characteristics (2/2)
MSM512800C
(VCC = 5 V 5%, Ta = 0C to 70C, Input Pulse Levels 0 V to 3 V) Note 1, 2, 3 Parameter Write Command Set-up Time Write Command Hold Time Write Command Hold Time from RAS Write Command Pulse Width OE Command Hold Time Write Command to RAS Lead Time Write Command to CAS Lead Time Data-in Set-up Time Data-in Hold Time Data-in Hold Time from RAS OE to Data-in Delay Time CAS to WE Delay Time Column Address to WE Delay Time RAS to WE Delay Time CAS Precharge WE Delay Time CAS Active Delay Time from RAS Precharge RAS to CAS Set-up Time (CAS before RAS) RAS to CAS Hold Time (CAS before RAS)
Symbol
MSM512800 MSM512800 MSM512800 C-40 C-45 C-50 Unit Note Min. Max. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Min. 0 12 35 10 12 14 14 0 12 35 12 36 48 70 46 0 10 25 Max. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Min. 0 13 40 10 13 14 14 0 13 40 13 38 52 75 50 0 10 25 Max. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 9 9 9 9 10 10 9 0 10 30 10 10 10 10 0 10 30 10 30 40 60 45 0 10 20
tWCS tWCH tWCR tWP tOEH tRWL tCWL tDS tDH tDHR tOED tCWD tAWD tRWD tCPWD tRPC tCSR tCHR
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Semiconductor Notes:
MSM512800C
1. A start-up delay of 200 s is required after power-up, followed by a minimum of eight initialization cycles (RAS-only refresh or CAS before RAS refresh) before proper device operation is achieved. 2. The AC characteristics assume tT = 5 ns. 3. VIH (Min.) and VIL (Max.) are reference levels for measuring input timing signals. Transition times (tT) are measured between VIH and VIL. 4. This parameter is measured with a load circuit equivalent to 2 TTL loads and 50 pF. 5. Operation within the tRCD (Max.) limit ensures that tRAC (Max.) can be met. tRCD (Max.) is specified as a reference point only. If tRCD is greater than the specified tRCD (Max.) limit, then the access time is controlled by tCAC. 6. Operation within the tRAD (Max.) limit ensures that tRAC (Max.) can be met. tRAD (Max.) is specified as a reference point only. If tRAD is greater than the specified tRAD (Max.) limit, then the access time is controlled by tAA. 7. tOFF (Max.) and tOEZ (Max.) define the time at which the output achieves the open circuit condition and are not referenced to output voltage levels. 8. tRCH or tRRH must be satisfied for a read cycle. 9. tWCS, tCWD, tRWD, tAWD and tCPWD are not restrictive operating parameters. They are included in the data sheet as electrical characteristics only. If tWCS tWCS (Min.), then the cycle is an early write cycle and the data out will remain open circuit (high impedance) throughout the entire cycle. If tCWD tCWD (Min.) , tRWD tRWD (Min.), tAWD tAWD (Min.) and tCPWD tCPWD (Min.), then the cycle is a read modify write cycle and data out will contain data read from the selected cell; if neither of the above sets of conditions is satisfied, then the condition of the data out (at access time) is indeterminate. 10. These parameters are referenced to the CAS leading edge in an early write cycle, and to the WE leading edge in an OE control write cycle, or a read modify write cycle.
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E2G0092-17-41E Semiconductor MSM512800C
,,, , ,,,,
TIMING WAVEFORM
Read Cycle
tRC tRAS tRP RAS VIH - VIL - tAR tCRP tCRP tCSH tRCD VIH - CAS VIL - VIH - VIL - VIH - VIL - VIH - VIL - VOH - tRAD tRSH tCAS tRAL tASR tRAH tASC tCAH Address Row Column tRCS tRRH tRCH WE OE tAA tROH tOEA tRAC tCAC tOEZ tOFF DQ VOL - Open Valid Data-out tCLZ "H" or "L"
Write Cycle (Early Write)
tRC
tRAS
tRP
RAS
VIH - VIL - VIH - VIL -
tAR
tCRP
tCRP
tCSH
tRCD
tRSH
CAS
tRAD tRAH
tCAS
tASR
tASC
tCAH
tRAL
Address
VIH - VIL - VIH -
Row
Column
tWCS
tWCH tWP
tCWL
WE
VIL - VIH -
tWCR
tRWL
OE
VIL - VIH -
tDS
tDHR
tDH
DQ
VIL -
Valid Data-in
Open
"H" or "L"
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,,,
Semiconductor MSM512800C Read Modify Write Cycle
tRWC tRAS tRP RAS VIH - VIL - tAR tCSH tCRP tCRP tRCD tRSH VIH - CAS VIL - tCAS tASR tRAH tASC tCAH VIH - Address VIL - WE OE VIH - VIL - VIH - VIL - VI/OH- Row Column tRAD tRWD tCWD tAA tAWD tCWL tRWL tWP tRCS tOEA tOED tOEH tCAC tRAC tOEZ tDS tDH DQ VI/OL- tCLZ Valid Data-out Valid Data-in "H" or "L"
10/16
, ,, , , ,,
Semiconductor MSM512800C Fast Page Mode Read Cycle
tRASP tRP VIH - RAS V - IL VIH - CAS VIL - VIH - VIL - VIH - VIL - tAR tRHCP tCRP tRCD tPC tRSH tCRP tCP tCP tRAD tCAS tCAS tCAS tASR tRAH tASC tCSH tCAH tASC tCAH tASC tRAL tCAH Address Row Column Column Column tRCS tRCH tRCS tAA tRCH tRCS tAA tRCH WE tAA tRRH VIH - OE VIL - tOEA tCPA tCPA tOEA tOEA tCAC tRAC tOFF tOEZ tCAC tOFF tCAC tOFF tCLZ tOEZ tCLZ tOEZ VOH - DQ VOL - tCLZ
Valid Data-out Valid Data-out Valid Data-out
"H" or "L"
Fast Page Mode Write Cycle (Early Write)
tRASP tPC
tRP
VIH - RAS V - IL VIH - CAS VIL - VIH - VIL -
tAR
tRHCP
tCRP
tRCD
tRSH
tCRP
tCAS
tCP
tCP
tCAS
tCAS
tASR
tRAH tASC tRAD
tCSH tCAH
tASC
tCAH
tASC
tCAH
tRAL
Address
Row
tWCS
VIH - WE VIL -
Column tCWL tWCH tWP tWCR tDH
Column tCWL tWCS tWCH tWP
Column tRWL tCWL tWCS tWCH tWP tDS tDH
tDS
tDS
tDH
DQ
VIH - VIL -
Valid Data-in
Valid Data-in
Valid Data-in
tDHR
Note: OE = "H" or "L"
"H" or "L"
11/16
Semiconductor
Fast Page Mode Read Modify Write Cycle
VIH - RAS VIL - tAR
VIH - CAS VIL -
Address
VIH - VIL -
V WE IH - VIL -
VIH - OE V - IL VI/OH- VI/OL -
DQ
RAS-Only Refresh Cycle
RAS
VIH - VIL -
CAS
VIH - VIL -
Address
VIH - VIL -
DQ
VOH - VOL -
,,,, , , ,
tRASP tRP tCSH tPRWC tRCD tCAS tCP tCAS tCP tRSH tCAS tCRP tRAD tRAH tCAH tASC tASC tASR tASC tCAH tCAH tRAL Row Column tRWD Column Column tRCS tCWD tCWL tRCS tCPWD tCWD tAWD tCWL tRCS tCPWD tCWD tAWD tRWL tCWL tAWD tRAC tDS tWP tDH tDS tWP tDH tROH tDS tWP tDH tAA tCPA tAA tCPA tAA tOEA tOEA tOEA tOED tOED tOED tCAC tOEZ tCAC tOEZ
In
MSM512800C
tCAC
tOEZ
Out
In
Out
Out
In
tCLZ
tCLZ
tCLZ
"H" or "L"
tRC
tRAS
tRP
tCRP
tRPC
tASR
tRAH
Row
tOFF
Open
Note: WE, OE = "H" or "L"
"H" or "L"
12/16
,, ,,,
Semiconductor MSM512800C CAS before RAS Refresh Cycle
tRC tRP tRAS tRP RAS VIH - VIL - tRPC tRPC tCP tCSR tCHR CAS VIH - VIL - VOH - VOL - tOFF DQ Open Note: WE, OE, Address = "H" or "L" "H" or "L"
Hidden Refresh Read Cycle
tRC
tRC
tRAS
tRP
tRAS
tRP
RAS
VIH - VIL - VIH - VIL -
tAR
tCRP
tRCD
tRSH
tCHR
CAS
tASR
tRAD tASC tRAH
tCAH
Address
VIH - VIL -
Row
Column
tRCS
tRAL
tRRH
VIH - WE V IL - VIH - OE V IL -
tAA
tROH
tOEA
tRAC DQ VOH - VOL -
tCAC tCLZ Valid Data-out
tOFF tOEZ
"H" or "L"
13/16
,,, ,
Semiconductor MSM512800C Hidden Refresh Write Cycle
tRC tRC tRAS tRP tRAS tRP RAS VIH - VIL - VIH - tAR tCRP tRCD tRSH tCHR CAS VIL - tASR tRAD tASC tRAH tCAH t RAL Address VIH - VIL - Row Column tWCS tWCH VIH - WE V IL - VIH - OE V IL - tWP tWCR tDS tDH V- DQ IH VIL - Valid Data-in tDHR "H" or "L"
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Semiconductor
MSM512800C
PACKAGE DIMENSIONS
(Unit : mm)
SOJ26/24-P-300-1.27
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 0.80 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
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Semiconductor
MSM512800C
(Unit : mm)
TSOPII26/24-P-300-1.27-K
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 0.29 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
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