MT46V16M16BJ データシートの表示（PDF） - Micron Technology
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MT46V16M16BJ Datasheet PDF : 80 Pages
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256Mb: x4, x8, x16
DDR SDRAM
Table 2: Ball/Pin Descriptions (Continued)
FBGA
TSOP
NUMBERS NUMBERS
A8, B7, C7,
D7, D3, C3,
B3, A2
B7, D7, D3,
B3
E3
E7
E3
2, 5, 8,
11, 56, 59, 62,
65
5, 11, 56,
62
51
16
51
SYMBOL
DQ0–DQ2
DQ3–DQ5
DQ6, DQ7
DQ0–DQ2
DQ3
DQS
LDQS
UDQS
F9
B2, D2, C8,
E8, A9
A1, C2, E2,
B8, D8
F8, M7, A7
A3, F2, M3
F1
14, 17, 25, 43,
53
19, 50
3, 9, 15, 55,
61
6, 12, 52, 58,
64
1, 18, 33
34, 48, 66
49
NC
DNU
VDDQ
VSSQ
VDD
VSS
VREF
TYPE
I/O
DESCRIPTION
Data Input/Output: Data bus for x8.
(DQ4–DQ7 are NC for the x4)
I/O Data Input/Output: Data bus for x4.
I/O Data Strobe: Output with read data, input with write data. DQS is
edge-aligned with read data, centered in write data. It is used to
capture data. For the x16, LDQS is DQS for DQ0–DQ7 and UDQS is
DQS for DQ8–DQ15. Pin 16 (E7) is NC on x4 and x8.
– No Connect: These pins should be left unconnected.
–
Supply
Supply
Do Not Use: Must float to minimize noise on VREF.
DQ Power Supply: +2.5V ±0.2V. Isolated on the die for improved
noise immunity.
DQ Ground: Isolated on the die for improved noise immunity.
Supply
Supply
Supply
Power Supply: +2.5V ±0.2V.
Ground.
SSTL_2 reference voltage.
Table 3: Reserved NC Balls and Pins1
FBGA
NUMBERS
F9
TSOP
NUMBERS
17
SYMBOL
A13
TYPE DESCRIPTION
I
Address input A13 for 1Gb devices. DNU for FBGA.
NOTE:
1. NC pins not listed may also be reserved for other uses now or in the future. This table simply defines specific NC pins
deemed to be of importance.
09005aef8076894f
256MBDDRx4x8x16_2.fm - Rev. F 6/03 EN
10
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2003 Micron Technology, Inc.
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