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부품번호 | EDS6432AFBH-TT 기능 |
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기능 | 64M bits SDRAM WTR | ||
제조업체 | Elpida Memory | ||
로고 | |||
DATA SHEET
64M bits SDRAM
WTR (Wide Temperature Range)
EDS6432AFBH-TT (2M words × 32 bits)
Description
The EDS6432AFBH is 64M bits SDRAMs organized as
524,288 words × 32 bits × 4 banks. All inputs and
outputs are synchronized with the positive edge of the
www.DataSheet4Uc.cloomck.
It is packaged in 90-ball FBGA.
Features
• 3.3V power supply
• Clock frequency: 133MHz (max.)
• Single pulsed /RAS
• ×32 organization
• 4 banks can operate simultaneously and
independently
• Burst read/write operation and burst read/single
write operation capability
• Programmable burst length (BL): 1, 2, 4, 8, full page
• 2 variations of burst sequence
Sequential (BL = 1, 2, 4, 8, full page)
Interleave (BL = 1, 2, 4, 8)
• Programmable /CAS latency (CL): 2, 3
• Byte control by DQM
• Refresh cycles: 4096 refresh cycles/64ms
• 2 variations of refresh
Auto refresh
Self refresh
• Wide temperature range
Ambient temperature range: –20°C to +85°C
• FBGA package with lead free solder (Sn-Ag-Cu)
RoHS compliant
Pin Configurations
/xxx indicate active low signal.
90-ball FBGA
123456789
A
DQ26 DQ24 VSS
B
DQ28 VDDQ VSSQ
C
VSSQ DQ27 DQ25
D
VSSQ DQ29 DQ30
E
VDDQ DQ31 NC
F
VSS DQM3 A3
G
A4 A5 A6
H
A7 A8 NC
J
CLK CKE A9
K
DQM1 NC NC
L
VDDQ DQ8 VSS
M
VSSQ DQ10 DQ9
N
VSSQ DQ12 DQ14
P
DQ11 VDDQ VSSQ
R
DQ13 DQ15 VSS
(Top view)
VDD DQ23 DQ21
VDDQ VSSQ DQ19
DQ22 DQ20 VDDQ
DQ17 DQ18 VDDQ
NC DQ16 VSSQ
A2 DQM2 VDD
A10 A0 A1
NC BA1 NC
BA0 /CS /RAS
/CAS /WE DQM0
VDD DQ7 VSSQ
DQ6 DQ5 VDDQ
DQ1 DQ3 VDDQ
VDDQ VSSQ DQ4
VDD DQ0 DQ2
A0 to A10
BA0, BA1
DQ0 to DQ31
/CS
/RAS
/CAS
/WE
DQM0 to DQM3
CKE
CLK
VDD
VSS
VDDQ
VSSQ
NC
Address inputs
Bank select address
Data-input/output
Chip select
Row address strobe
Column address strobe
Write enable
DQ mask enable
Clock enable
Clock input
Power for internal circuit
Ground for internal circuit
Power for DQ circuit
Ground for DQ circuit
No connection
Document No. E0806E10 (Ver. 1.0)
Date Published September 2005 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2005
EDS6432AFBH-TT
Electrical Specifications
• All voltages are referenced to VSS (GND).
• After power up, execute power up sequence and initialization sequence before proper device operation is
achieved (refer to the Power up sequence).
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit Note
Voltage on any pin relative to VSS
VT
–0.5 to VDD + 0.5 (≤ 4.6 (max.))
V
Supply voltage relative to VSS
VDD
–0.5 to +4.6
V
Short circuit output current
IOS 50
mA
Power dissipation
PD 1.0
W
Operating ambient temperature
TA
–20 to +85
°C
Storage temperature
www.DataSheet4UC.caomution
Tstg –55 to +125
°C
Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
Recommended DC Operating Conditions (TA = –20°C to +85°C)
Parameter
Symbol
min.
max.
Supply voltage
VDD, VDDQ
3.0
3.6
VSS, VSSQ
0
0
Input high voltage
VIH 2.0
VDD + 0.3
Input low voltage
VIL –0.3
0.8
Notes: 1. The supply voltage with all VDD and VDDQ pins must be on the same level.
2. The supply voltage with all VSS and VSSQ pins must be on the same level.
3. VIH (max.) = VDD + 1.5V (pulse width ≤ 5ns).
4. VIL (min.) = VSS – 1.5V (pulse width ≤ 5ns).
Unit
V
V
V
V
Notes
1
2
3
4
Data Sheet E0806E10 (Ver. 1.0)
4
4페이지 EDS6432AFBH-TT
AC Characteristics (TA = –20°C to +85°C, VDD, VDDQ = 3.3V ± 0.3V, VSS, VSSQ = 0V)
-75
Parameter
Symbol
min.
max.
Unit
System clock cycle time
(CL = 2)
(CL = 3)
tCK 10
tCK 7.5
—
—
ns
ns
CLK high pulse width
tCH 2.5
—
ns
CLK low pulse width
tCL 2.5
—
ns
Access time from CLK
tAC —
5.4 ns
Data-out hold time
tOH 2
— ns
CLK to Data-out low impedance
tLZ 0
— ns
CLK to Data-out high impedance
tHZ —
5.4 ns
www.DataSheet4UI.ncopmut setup time
tSI 1.5
—
ns
Input hold time
tHI 0.8
—
ns
Ref/Active to Ref/Active command period
tRC
67.5
—
ns
Active to Precharge command period
Active command to column command
(same bank)
Precharge to active command period
tRAS
tRCD
tRP
45
20
20
120000
—
—
ns
ns
ns
Write recovery or data-in to precharge lead time tDPL
15
—
ns
Last data into active latency
tDAL
2CLK + 20ns
—
Active (a) to Active (b) command period
tRRD
15
—
ns
Transition time (rise and fall)
tT 0.5 5
ns
Refresh period
(4096 refresh cycles)
tREF
—
64
ms
Notes: 1. AC measurement assumes tT = 0.5ns. Reference level for timing of input signals is 1.4V.
2. Access time is measured at 1.4V. Load condition is CL = 30pF.
3. tLZ (min.) defines the time at which the outputs achieves the low impedance state.
4. tHZ (max.) defines the time at which the outputs achieves the high impedance state.
Notes
1
1
1
1
1, 2
1, 2
1, 2, 3
1, 4
1
1
1
1
1
1
1
1
Data Sheet E0806E10 (Ver. 1.0)
7
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부품번호 | 상세설명 및 기능 | 제조사 |
EDS6432AFBH-TT | 64M bits SDRAM WTR | Elpida Memory |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |