mr2a16a ETC-unknow, mr2a16a Datasheet - Page 6

• Manufacturer Part Number: mr2a16a
• Description: 256k X 16-bit 3.3-v Asynchronous Magnetoresistive Ram
• Manufacturer: ETC-unknow

Timing Specifications
Timing Specifications
Read Mode
6
NOTES:
Read cycle time
Address access time
Enable access time
Output enable access time
Byte enable access time
Output hold from address
Enable low to output active
Output enable low to output
Byte enable low to output
Enable high to output Hi-Z
Output enable high to output
Byte high to output Hi-Z
change
active
active
Hi-Z
1. W is high for read cycle.
2. Due to product sensitivities to noise, power supplies must be properly grounded and decoupled and bus contention
3. Addresses valid before or at the same time E goes low.
4. This parameter is sampled and not 100% tested.
5. Transition is measured r200 mV from steady-state voltage.
conditions must be minimized or eliminated during read and write cycles.
Parameter
Table 9. Read Cycle Timing (See Notes 1 and 2)
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
GHQZ
AVQV
GLQV
AXQX
GLQX
EHQZ
BHQZ
ELQV
BLQV
ELQX
BLQX
AVAV
Min
MR2A16A/D, Rev. 0.1
20
—
—
—
—
3
3
0
0
0
0
0
20
Max
20
20
10
10
10
—
—
—
—
—
6
6
Min
Timing Set
25
—
—
—
—
3
3
0
0
0
0
0
25
Max
25
25
11
11
11
—
—
—
—
—
7
7
Min
35
—
—
—
—
3
3
0
0
0
0
0
35
Max
35
35
15
15
15
10
10
—
—
—
—
—
Freescale Semiconductor
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
4, 5
4, 5
4, 5
4, 5
4, 5
4, 5
3