5
G-LINK Technology
GLT41116
July 1998 (Rev. 1)
AC Characteristics (0
°C ≤ T
A ≤ 70 °C, VCC = 5.0V ± 10%)
[1] [2]
Parameter
Symbol
-30
-35
-40
-45
Units
Notes
Min
Max
Min
Max
Min
Max
Min
Max
Read/Write Cycle Time
tRC
65–70–75–80–
ns
Read Modify Write Cycle Time
tRWC
80
–
99
–
105
–
110
–
ns
Access Time for RAS
tRAC
–30–35–40–45
ns
[3] [4]
Access Time for CAS
tCAC
–10
11–12–
–12
ns
[3] [4]
Access TIme from Column Address
tAA
–15–18–20–22
ns
[3] [4]
CAS to output ion Low-Z
tCLZ
0–0–0–0–
ns
[3]
Output buffer turn-off delay from CAS
tOFF
38383838
ns
[5]
Transition Time (Rise and Fall)
tT
350350350350
ns
[2]
RAS Precharge Time
tRP
25–25–25–25–
ns
RAS Pulse Width
tRAS
30
100k
35
100k
40
100k
45
100k
ns
RAS Hold Time
tRSH
10–12–12–13–
ns
CAS Hold Time
tCSH
30–36–40–46–
ns
CAS Pulse Width
tCAS
10
10k
12
10k
12
10k
13
10k
ns
RAS to CAS Delay Time
tRCD
13
20
17
24
18
28
18
33
ns
[4]
RAS to Column Address Delay Time
tRAD
10
15
12
17
13
20
12
23
ns
[4]
CAS To RAS Precharge Time
tCPRP
5–5–5–5–
ns
[6]
Row Address Setup TIme
tASR
0–0–0–0–
ns
Row Address Hold Time
tRAH
6–6–6–6–
ns
Column Address Setup Time
tASC
26–30–34–39–
ns
Column Address Hold Time
tCAH
15–18–20–23–
ns
Column Address Hold Time Referenced to RAS
tAR
26–30–34–39–
ns
Column Address Lead Time Referenced to RAS
tRAL
15–18–20–23–
ns
Read Command Setup Time
tRCS
0–0–0–0–
ns
Read Command Hold Time Referenced to RAS
tRRH
0–0–0–0–
ns
[7]
Read Command Hold Time Referenced to CAS
tRCH
0–0–0–0–
ns
[7]
WE Hold Time Referenced to CAS
tWCH
6–6–6–6–
ns
[8]
Write Command Hold time Referenced to RAS
tWCR
26–30–34–39–
ns
[9]
WE Pulse Width
tWP
6–6–6–6–
ns
[8]
WE Lead Time Referenced to RAS
tRWL
10–11–12–12–
ns
WE Lead Time Referenced to CAS
tCWL
10–11–12–12–
ns
Data-In Setup Time
tDS
0–0–0–0–
ns
[10]
Data-In Hold Time
tDH
7–6–8–8–
ns
[10]
Data Hold Time Referenced to RAS
tDHR
27–31–36–41–
ns
[11]
WE Setup Time
tWCS
0–0–0–0–
ns
[9]
RAS to WE Delay Time
tRWD
47–58–63–68–
ns
[9]
CAS to WE Delay Time
tCWD
24–29–30–30–
ns
[9]
Column Address to WE Delay Time
tAWD
29–36–38–40–
ns
[9]
CAS Setup TIme (CAS Before RAS Refresh)
tCSR
5–5–5–5–
ns
CAS Hold Time (CAS Before RAS Refresh)
tCHR
10–10–10–10–
ns
RAS to CAS Precharge Time
tRPC
5–5–5–5–
ns
CAS Precharge Time (CBR Counter Test Cycle)
tCPT
20–20–20–20–
ns
Access Time From CAS Precharge
tCPA
–18–21–23–25
ns
[3]
Fast Page Mode Read/Write Cycle Time
tPC
18–21–23–25–
ns