Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

TMPR4937 Datasheet(PDF) 512 Page - Toshiba Semiconductor

Part # TMPR4937
Description  64-Bit TX System RISC TX49 Family
PDF  552 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMPR4937 Datasheet(HTML) 512 Page - Toshiba Semiconductor

Back Button TMPR4937 Datasheet HTML 508Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 509Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 510Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 511Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 512Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 513Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 514Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 515Page - Toshiba Semiconductor TMPR4937 Datasheet HTML 516Page - Toshiba Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 512 / 552 page
background image
Chapter 21 Electrical Characteristics
21-6
21.5.3 SDRAM Interface AC characteristics
(Tc = 0 – 70°C, VCCIO = 3.3 V ± 0.2 V, VCCInt = 1.5 V ± 0.1 V, VSS = 0 V, CL = 150 pF)
Item
Symbol
Conditions
Min.
Max.
Unit
SDCLK[3:0] Cycle Time
tCYC_SDCLK
CL=50 pF, 16 mA buffer time
7.5
⎯
ns
SDCLK[3:0] High Time
tHIGH_SDCLK
CL=50 pF, 16 mA buffer time
2.5
⎯
ns
SDCLK[3:0] Low Time
tLOW_SDCLK
CL=50 pF, 16 mA buffer time
2.5
⎯
ns
SDCLKIN Input Skew
tBP
When in the Non-bypass mode
*4)
0
tCYC_SDCLK
– 5.5
ns
CL=150 pF, 16 mA buffer, *1)
1.5
6.5
ns
ADDR[19:5] Output Delay
tVAL_ADDR1
CL= 80 pF, 16 mA buffer, *1)
1.5
5.2
ns
SDCS[3:0]* Output Delay
tVAL_SDCS
CL= 80 pF, 16 mA buffer
1.5
5.2
ns
CL=150 pF, 16 mA buffer, *1)
1.5
6.5
ns
RAS* Output Delay
tVAL_RAS
CL= 80 pF, 16 mA buffer, *1)
1.5
5.2
ns
CL=150 pF, 16 mA buffer, *3)
1.5
6.5
ns
CAS* Output Delay
tVAL_CAS
CL= 80 pF, 16 mA buffer, *3)
1.5
5.2
ns
CL=150 pF, 16 mA buffer, *3)
1.5
6.5
ns
WE* Output Delay
tVAL_WE
CL= 80 pF, 16 mA buffer, *3)
1.5
5.2
ns
CL=150 pF, 16 mA buffer
1.5
6.5
ns
CKE Output Delay
tVAL_CKE
CL= 80 pF, 16 mA buffer
1.5
5.2
ns
CL= 50 pF, 16 mA buffer, *2)
1.5
6.5
ns
DQM[7:0] Output Delay
tVAL_DQM
CL= 30 pF, 16 mA buffer, *2)
1.5
5.2
ns
CL= 50 pF, 16 mA buffer, *2)
1.5
6.5
ns
DATA[63:0] Output Delay (H
→L, L→H) tVAL_DATA1
CL= 30 pF, 16 mA buffer, *2)
1.5
5.2
ns
CL= 50 pF, 16 mA buffer, *2)
1.5
6.5
ns
DATA[63:0] Output Delay (Valid
→ Hi-
Z)
tVAL_DATA1ZV
CL= 30 pF, 16 mA buffer, *2)
1.5
5.2
ns
CL= 50 pF, 16 mA buffer, *2)
1.5
6.5
ns
DATA[63:0] Output Delay (Valid
→Hi-Z) tVAL_DATA1VZ
CL= 30 pF, 16 mA buffer, *2)
1.5
5.2
ns
DATA[63:0] Input Setup Time
tSU_DATA1B
When in the Bypass mode
4.0
⎯
ns
DATA[63:0] Input Hold Time
tHO_DATA1B
When in the Bypass mode
0.5
⎯
ns
DATA[63:0] Input Setup Time
tSU_DATA1NB
When in the Non-bypass mode
1.0
⎯
ns
DATA[63:0] Input Hold Time
tHO_DATA1NB When in the Non bypass mode
1.0
⎯
ns
*1) Becomes a 2-cycle signal when tDACT of SDCTR1 is “1”.
*2) Becomes a 2-cycle signal when tSWB of SDCTR1 is “1”.
*3) 2-cycle signal
For information on 2-cycle operation, see the description in Chapter 9 SDRAM Controller.
*4) The MAX value is is tCYC_SDCLK – 5.5 ns.
Figure 21.5.3 Timing Diagram: Output Signal and Input Signal when in the Bypass Mode
(SDCLK Reference)
tVAL_*
SDCLK[n]
OUTPUT
INPUT
tHO_*
tSU_*
outputs valid
inputs valid



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

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com