MT40A1G8WE-083E Datasheet, PDF (337/358 Pages) Micron Technology – Automotive DDR4 SDRAM

Table 157: Electrical Characteristics and AC Timing Parameters (Continued)
Parameter
CMD, ADDR hold time
to CK_t, CK_c Base ref-
erenced to V_IH(DC) and
VIL(DC) ^levels
Base
V_REFCA
CTRL, ADDR pulse width for each input
ACTIVATE to internal READ or WRITE de-
lay
PRECHARGE command period
ACTIVATE-to-PRECHARGE command peri-
od
ACTIVATE-to-ACTIVATE or REF command
period
ACTIVATE-to-ACTIVATE command period
to different bank groups for 1/2KB page
size
ACTIVATE-to-ACTIVATE command period
to different bank groups for 1KB page
size
ACTIVATE-to-ACTIVATE command period
to different bank groups for 2KB page
size
ACTIVATE-to-ACTIVATE command period
to same bank groups for 1/2KB page size
ACTIVATE-to-ACTIVATE command period
to same bank groups for 1KB page size
ACTIVATE-to-ACTIVATE command period
to same bank groups for 2KB page size
Four ACTIVATE windows for 1/2KB page
size
Four ACTIVATE windows for 1KB page
size
Four ACTIVATE windows for 2KB page
size
Symbol
t_IH
t_IHVREF
t_IPW
t_RCD
t_RP
t_RAS
t_RC
t_{RRD_S}
(1/2KB)
t_{RRD_S}
(1KB)
t_{RRD_S}
(2KB)
t_{RRD_L}
(1/2KB)
t_{RRD_L}
(1KB)
t_{RRD_L}
(2KB)
t_FAW
(1/2KB)
t_FAW
(1KB)
t_FAW
(2KB)
DDR4-1600
Min Max
140
–
215
–
DDR4-1866
Min Max
125
–
200
–
DDR4-2133
Min Max
105
–
180
–
DDR4-2400
Min Max
87
–
162
–
Unit
ps
ps
Notes
600
–
525
–
460
–
410
–
ps
See Speed Bin Tables for ^tRCD
ns
See Speed Bin Tables for ^tRP
See Speed Bin Tables for ^tRAS
ns
ns
13
See Speed Bin Tables for ^tRC
ns
13
MIN = greater MIN = greater MIN = greater MIN = greater CK
1
of 4CK or 5ns of 4CK or 4.2ns of 4CK or 3.7ns of 4CK or 3.3ns
MIN = greater MIN = greater MIN = greater MIN = greater CK
1
of 4CK or 5ns of 4CK or 4.2ns of 4CK or 3.7ns of 4CK or 3.3ns
MIN = greater MIN = greater MIN = greater MIN = greater CK
1
of 4CK or 6ns of 4CK or 5.3ns of 4CK or 5.3ns of 4CK or 5.3ns
MIN = greater MIN = greater MIN = greater MIN = greater CK
1
of 4CK or 6ns of 4CK or 5.3ns of 4CK or 5.3ns of 4CK or 4.9ns
MIN = greater MIN = greater MIN = greater MIN = greater CK
1
of 4CK or 6ns of 4CK or 5.3ns of 4CK or 5.3ns of 4CK or 4.9ns
MIN = greater MIN = greater MIN = greater MIN = greater CK
1
of 4CK or 7.5ns of 4CK or 6.4ns of 4CK or 6.4ns of 4CK or 6.4ns
MIN = greater MIN = greater MIN = greater MIN = greater ns
of 16CK or 20ns of 16CK or 17ns of 16CK or 15ns of 16CK or 13ns
MIN = greater MIN = greater MIN = greater MIN = greater ns
of 20CK or 25ns of 20CK or 23ns of 20CK or 21ns of 20CK or 21ns
MIN = greater MIN = greater MIN = greater MIN = greater ns
of 28CK or 35ns of 28CK or 30ns of 28CK or 30ns of 28CK or 30ns