W97AH6KB datasheet(91/127 Pages) WINBOND

91 / 127 page

W97AH6KB / W97AH2KB

Publication Release Date: May 15, 2014

Revision: A01-001

- 91 -

8.2.5.5

Overshoot and Undershoot Specifications

Table of AC Overshoot/Undershoot Specification

Parameter

LPDDR2

Unit

1066

933

800

667

533

400

333

Maximum peak amplitude

allowed for overshoot area.

(See figure below)

Max

0.35

Maximum peak amplitude

allowed for undershoot area.

(See figure below)

Max

0.35

Maximum area above VDD.

(See figure below)

Max

0.15

0.17

0.20

0.24

0.30

0.40

0.48

V-nS

Maximum area below VSS.

(See figure below)

Max

0.15

0.17

0.20

0.24

0.30

0.40

0.48

V-nS

(CA0-9, CS_n, CKE, CK_t, CK_c, DQ, DQS_t, DQS_c, DM)

Notes:

1. For CA0-9, CK_t, CK_c, CS_n, and CKE, VDD stands for VDDCA. For DQ, DM, DQS_t, and DQS_c, VDD stands for VDDQ.

2. For CA0-9, CK_t, CK_c, CS_n, and CKE, VSS stands for VSSCA. For DQ, DM, DQS_t, and DQS_c, VSS stands for VSSQ.

3. Maximum peak amplitude values are referenced from actual VDD and VSS values.

4. Maximum area values are referenced from maximum operating VDD and VSS values.

VDD

VSS

Overshoot Area

Undershoot Area

Maximum Amplitude

Time (ns)

Volts

(V)

Figure of Overshoot and Undershoot Definition

Notes:

1. For CA0-9, CK_t, CK_c, CS_n, and CKE, VDD stands for VDDCA. For DQ, DM, DQS_t, and DQS_c, VDD stands for VDDQ.

2. For CA0-9, CK_t, CK_c, CS_n, and CKE, VSS stands for VSSCA. For DQ, DM, DQS_t, and DQS_c, VSS stands for VSSQ.

3. Maximum peak amplitude values are referenced from actual VDD and VSS values.

4. Maximum area values are referenced from maximum operating VDD and VSS values.

W97AH6KB Datasheet(PDF) 91 Page - Winbond

W97AH6KB Datasheet(HTML) 91 Page - Winbond

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL