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K4H511638J datasheet DDR SDRAM
Rev. 1.1
K4H510838J
K4H510438J
11. DDR SDRAM Spec Items & Test Conditions
12. Input/Output Capacitance
( TA= 25°C, f=100MHz)
NOTE :
1. These values are guaranteed by design and are tested on a sample basis only.
2. Although DM is an input -only pin, the input capacitance of this pin must model the input capacitance of the DQ and DQS pins.
This is required to match signal propagation times of DQ, DQS, and DM in the system.
3. Unused pins are tied to ground.
4. This parameteer is sampled. VDDQ = +2.5V +0.2V, VDD = +2.5V+0.2V. For all devices, f=100MHz, tA=25°C, VOUT(DC) = VDDQ/2,
VOUT(peak to peak) = 0.2V. DM inputs are grouped with I/O pins - reflecting the fact that they are matched in loading (to facilitate trace matching at the
board level)
Conditions Symbol
Operating current - One bank Active-Precharge;
tRC=tRCmin; tCK= 6ns for DDR333, 5ns for DDR400; DQ,DM and DQS inputs changing once per clock cycle;
address and control inputs changing once every two clock cycles.
IDD0
Operating current - One bank operation ; One bank open, BL=4, Reads
- Refer to the following page for detailed test condition IDD1
Precharge power-down standby current; All banks idle; power - down mode;
CKE = <VIL(max); tCK=6ns for DDR333, 5ns for DDR400;
VIN = VREF for DQ,DQS and DM.
IDD2P
Precharge Floating standby current; CS > =VIH(min);All banks idle; CKE > = VIH(min); tCK=6ns for DDR333, 5ns for DDR400;
Address and other control inputs changing once per clock cycle; VIN = VREF for DQ,DQS and DM IDD2F
Precharge Quiet standby current; CS > = VIH(min); All banks idle;
CKE > = VIH(min); tCK=6ns for DDR333, 5ns for DDR400; Address and other control inputs stable at >= VIH(min) or =<VIL(max);
VIN = VREF for DQ ,DQS and DM
IDD2Q
Active power - down standby current ; one bank active; power-down mode;
CKE=< VIL (max); tCK=6ns for DDR333, 5ns for DDR400; VIN = VREF for DQ,DQS and DM IDD3P
Active standby current; CS >= VIH(min); CKE>=VIH(min);
one bank active; active - precharge;tCK=6ns for DDR333, 5ns for DDR400; DQ, DQS and DM inputs changing twice per clock
cycle; address and other control inputs changing once per clock cycle
IDD3N
Operating current - burst read; Burst length = 2; reads; continuous burst; One bank active; address and control inputs changing
once per clock cycle; CL=2.5 at tCK=6ns for DDR333, CL=3 at tCK=5ns for DDR400; 50% of data changing on every transfer; lout
= 0 m A
IDD4R
Operating current - burst write; Burst length = 2; writes; continuous burst;
One bank active address and control inputs changing once per clock cycle; CL=2.5 at tCK=6ns for DDR333, 5ns for DDR400; DQ,
DM and DQS inputs changing twice per clock cycle, 50% of input data changing at every burst
IDD4W
Auto refresh current; tRC = tRFC(min) which is 12*tCK for DDR333 at tCK=6ns, 14*tCK for DDR400 at tCK=5ns; distributed
refresh IDD5
Self refresh current; CKE =< 0.2V; External clock on; tCK=6ns for DDR333, 5ns for DDR400. IDD6
Operating current - Four bank operation ; Four bank interleaving with BL=4
-Refer to the following page for detailed test condition IDD7A
Parameter Symbol Min Max DeltaCap(max) Unit NOTE
Input capacitance
(A0 ~ A12, BA0 ~ BA1, CKE, CS, RAS,CAS, WE)CIN1 1.5 2.5 0.5 pF 4
Input capacitance( CK, CK ) CIN2 1.5 2.5 0.25 pF 4
Data & DQS input/output capacitance COUT 3.5 4.5
0.5
pF 1,2,3,4
Input capacitance(DM for x4/8, UDM/LDM for x16) CIN3 3.5 4.5 pF 1,2,3,4