HYB39S13620TQ- Datasheet, PDF (2/70 Pages) Siemens Semiconductor Group – Special Mode Registers Two color registers Burst Read with Single Write Operation

HYB 39S16320TQ-6/-7/-8
functions. By having a programmable Mode register and Special Mode register, the system can
select the best suitable modes to maximize its performance.
Operating the two memory banks in an interleave fashion allows random access operation to occur
at higher rate than is possible with standard DRAMs. A sequential and gapless data rate of up to
143 MHz is possible depending on burst length, CAS latency and speed grade of the device.
Auto Refresh (CBR) and Self Refresh operation are supported.
These devices operate with a single 3.3 V ± 0.3 V power supply and are available in 100 pin TQFP
package.
Ordering Information
Type
SDR LVTTL-Version
HYB 39S16320TQ-6
HYB 39S16320TQ-7
HYB 39S16320TQ-8
HYB 39S16320TQ-10
Ordering Code Package
on request
on request
on request
on request
TQFP-100-1
TQFP-100-1
TQFP-100-1
TQFP-100-1
Description
256k × 2 × 32 SGRAM
256k × 2 × 32 SGRAM
256k × 2 × 32 SGRAM
256k × 2 × 32 SGRAM
Features
• All signals fully synchronous to the positiv edge of the system clock
• Programmable burst lengths: 1, 2, 4, 8 or full page
• Burst data transfer in sequential or interleaved order
• Burst read with single write
• Programmable CAS latency: 2, 3
• 8 column block write and write-per-bit modes
• Independent byte operation via DQM 0 …3 interface
• Auto precharge and auto refresh modes
• 2k refresh cycles/32 ms
• LVTTL compatible I/O
• Hidden auto precharge for read bursts
Semiconductor Group
2
1998-10-01